here is the wa i look at it , jl, if a player is shooting more than you want him to shoot, then lower his distro, ....... if he is shooting less than you want him to shoot, increase his distro.
i knwo that seems obvious, but lots of us (oldavey included) get caught up in all the numbers and what they mean and where they come from and how they are calculated. in the end, none of that really matters... just tweak things a little at a time and soon you will find they are shooting about the amount you want them to.
when i am "tweaking" my distros, i normally only change it by 2 pts at a time (for instance, i might move your player above from 8 to 6) and then re-evaluate.
it seems to me like some players are "hard-wired" to shoot more, and so you have to rein them in a bit.
keep in mind that if you change a player from a starter to a sub or vice versa, that is usually going to have a big impact on how many shots he shoots.
i use the same type of idea for tweking my +2....-2 for three pointers. dont just assume that a setting of zero means the same thing for all players... it definitely does not. position (pg, sg, etc) is a huge factor, opponentD is important, and lastly some players just like to shoot more threes than others.