Ok, so recently i've been training stamina as i think most of my players i can train are nearing their peak and are going up once every few weeks, my question is are they still worth training? i have a SF who's 28 and MVP potential, a C who's 25 and perennial all-star potential, and finally a C who's 23 and perennial all star, could anyone give me some ideas if its worth training any of them or should i look at leaving them and buying a new prospect to worth on to max out the fact i have a 40k trainer, thanks!