If you are currently not gaining weekly and aren't getting enough calories in then you need to either eat more food or use a weight gainer. You may put on some fat but this is usually a necessary aspect of gaining muscle mass.

If you are curently gaining, then a protein may be best to help you meet your protein needs (you should try to get 2 grams of protein per kilo of bodyweight).

Either way, a creatine supplement will help you gain mass and strength without adding any bodyfat.

That's enough creatine on your training day but you also need to take one serving of some kind of creatine product on your non-workout days.
Re: the Mutant Mass, take the second serving middle of the day between meals or just before bed (whichever is the longest period you go without food,,,)
You may want to just take a 2 or 3 scoop serving of MF Anabolic on non-training days.

You should take the Mutant at least 2 scoops twice daily. Ideally, you would add some BCAA to each serving but the most important time to take the BCAA is just before and just after training. So it kind of depends upon your budget. One supplement to add would be a creatine product for quick gains in mass and strength.

The Mass-Tech is a great product, so I\'m surprised to hear that. It may work better if you use a Blender Bottle (a shaker with a metal wisk in it that breaks up the chunks).
Mutant Mass mixes up perfectly - no chunks (unless you get the cookies flavour, which is supposed to have bits). It is also our best-selling weight gainer.

Muscle Fuel Anabolic should be taken at least once per day to get sufficient creatine. One serving should be taken after training. You will likely get even better results if you take 2 servings on training days. If you do this, then you can plug the gaps between meals (especially on non-trianing days) with the Mutant Mass and wouldn't require any other source of creatine.

With any weight gainer, you can adjust the calories infinitely by using any number of full and half scoops. Mutant Mass is so good because it is one of the cheapest on a per-calorie basis and it has quality protein (10 types), carbs (with several sources of fibre for gut health and ease of digestion) and healthy fats (MCTs, CLA, Flax). So if you want more calories use 2 1/2 scoops or 3 scoops per serving. The key is, if your gains are coming too slowly, increase the dosage, if they are coming too quickly and resulting in too much fat accumulation, decrease it. The scoop size of a product is just an arbitrary decision because if you make it too big, people complain that the product doesn't last long enough and if you make it too small, they complain that it doesn't have as many calories as the competition.

Besides milk and egg proteins, I can't see any ingredients that are derived from animal sources in this product.

Cookies and Cream, followed closely by chocolate and strawbery/Banana.

This is by far our best-selling weight gainer, so all flavours are popular.

It depends upon your definition of "big". Depending upon your bodytype, at 6'1", you could look quite muscular at 13 stone if you are very lean. By professional bodybuilding standards, at 6'1", you'd want to weigh 20 stone ripped. Realistically, if you were lean at 15 stone, you'd certainly be considered muscular but it totally depends how lean and muscular you are now. You'd probably want to bulk up to about 16 or more stone and then diet down. A good rule of thumb is that to gain and keep 1 stone of muscle, you'd have to gain "at least" 2 stone (but again this depends heavily on genetics and natural levels of muscle). Either way, you're looking at our best-selling weight gainer. For an excellent article on gaining mass, read - http://www.tropicanafitness.com/view/v/article/a/45
Also, ensure your training is optimum for mass gains by reading - http://www.tropicanafitness.com/view/v/article/a/54

Yes, see my previous answer...

Mutant Mass is our best-selling (and best-performing) weight gainer product. So definitly get some - take 2 to 3 scoops 2 to 3 times per day (start off with 2 scoops twice daily and increase until you are gaining at the desired rate). The next best weight gainer is creatine monohydrate. You can buy the Tropicana brand (which is high-quality and at a good price) and add a teaspoon to each serving of Mutant Mass - this should result in very good gains in size and strength. If you prefer tablets, we recommend Creakic or Creadex - take one serving with each serving of Mutant Mass.
See the article - http://www.tropicanafitness.com/view/v/article/a/45 to most effectively use weight gainers.

Mutant Mass doesn't have any ingredients that would be harmful. It is designed to be the equivalent of a well-balanced meal that is high in quality protein and also contains important fibre and healthy fats. We recommend it as our best weight gainer product. Start by taking 2 scoops (a half serving), twice per day and slowly increase the amount if you are not gaining 1 to 2 kilos per week.

For best muscle-building resluts, I would strongly suggest that your read the articles:

http://www.tropicanafitness.com/view/v/article/a/45 for essential info on weight gainers
AND
http://www.tropicanafitness.com/view/v/article/a/54 for advice on heavy training for maximum gains. [free weights vs machines]

We recommend taking either one heaping teaspoon of powdered creatine monohydrate or Creadex or Creakic tablets) with your two servings of Mutant Mass per day (take one of the servings just after workouts on workout days unless you are already taking a post-workout product).

After weight gainers & protein products, creatine is the most important supplement for mass and strength gains.

See the article - http://www.tropicanafitness.com/view/v/article/a/45 to most effectively use weight gainers.

see - http://www.tropicanafitness.com/view/v/article/a/176 for essential info to get the best results from creatine.

You should see results within the first two weeks. Start by taking 2 scoops (a half serving) 2 or 3 times per day between meals - take one just after training. Then, if you aren't gaining 1 to 3 kilograms per week, increase to 3 scoops 3 times per day. In the unlikely case that you don't gain at least 1 kilogram doing this, go to a full serving size.

See the excellent article - http://www.tropicanafitness.com/view/v/article/a/45 for essential info on weight gainers

Also, see - http://www.tropicanafitness.com/view/v/article/a/54 for advice on heavy training for maximum gains.

Absolutely, we actuall suggest this to many customers as not everyone can handle a full serving of a weight gainer. If this does not deliver the gains you are looking for, move up to 3 scoops and/or increase the size of your meals (especially the carbs as they stimulate appetite).