So having a few trainees selected for inside training over the next few seasons I want to Train/boost SB to well over 15 and like to know if height has a lot to do with how fast a trainee pops in SB. Not sure how this is going to turn out but i like to experiment boosting huge amounts of SB training (15+) and ID, RB and IS to round the trainees out. But if the trainees are under a certain height will the training be slower than a 7-5 trainee??? The heights of my trainees range from 6-8 to 7-2 and I use a level 4 trainer.