MY (little training) EXPERIENCE :
I train since 5 years 2x/week Upper/Lower and muay thai/boxing since 10 yrs 6 times week. I used almost all PWO from since the 5 last years : DE, R3IGN, MESO, iF Conqueer, Nitraflex, GameDay, White Heat, APS White Lightning, Off the Chain, ON Gold, C4...