I take Animal Nitro, and I've seen gains in strength and mass since I've added them to my supps. There was a short period of time where I couldn't afford to replenish my stock and my gains slowed quite a bit so I'm a definite believer in aminos.
If you're not anti-AnimalPak and curious... here's their dose directions (
http://animalpak.com/html/sections.cfm?id=55 ):
"When lifting, there is a critical 4-hour anabolic “window of opportunity” that exists. To take advantage of this window, take 1 pack within 30 minutes following resistance training. For even better results, take 2 packs daily – the first immediately before lifting, and the second within 30 minutes after. If you use a post-training protein shake, wait at least another 30-45 minutes after you’ve taken the Animal Nitro pack before drinking your shake. Always take Animal Nitro on an empty stomach, preferably with 8 oz. of grape or other fruit juice."
The best advice I could give you is to try it out, and draw your own conclusions bro.