I trained my SF trainee 4 weeks in a row in JR without a pop when he was 20! Apparently that happens sometimes.
My player is 6'3'' and he got his previous pop-up in JR with only 2 weeks of training. How is it possible for him to need 4 weeks for the next pop-up? I have a level 5 trainer.
I'm clearly not a specialist, but for a nice SF like that, I'm saddened by his passing so low.