Just to comment on your estimate for 200-300 shots per day. I play amateur ball in germany on a rather basic level. yesterday i decided to do a shooting session with a teammate, where we not only shot with a single ball for one hour, but also spoke about execution, foot placement etc. i assume i approached 200 shots in that span, for two people in a casual manner with slightly more misses than makes. i would assume Bron easily exceeds my output by a multiple.
That is NBA champion and locker room MVP DeAndre Jordan!