I've been a big believer in bcaas pre & post workout for yrs. After playing around & doing some reading I've been using leucine only in my pre & post workout drinks to trigger mTOR.
In my honest oppinnion I see no difference. I have no lagging soreness, recovery is good. I've been doing this for the last few months. I've played around w/ dosing during this time then came on a doctor doing studies on leucine. He states that a set amount of leucine isn't the key. The key is that to make sure when you take in protein that leucine is 25% of the pool. So w/ my protein shakes its around 6 grams per shake.
To say this is the gospel I don't know, but if you asked me if i'm satisfied w/ what i've found yes I am & will continue this to see what happens.
Leucine powder is alot cheaper then bcaas currently.