I dare say if I played Zadok every game at C with Look Inside tactic he might stand a chance of being up there...
I think this gives you another reason why the big men dont score as often.
For training they i imagine are shuffled to PF and SF and if preserved for best GS may often start only 1 game and be back up in another.
Bottom line is I reckon the guys setting the records aren't the best players anyway.
I guess PL's are the best way to really judge not regular seasonal stats.