Steve,
You've got me thinking about this on my morning jogs. :) This morning's cogitation brought this theory:
One thing that
could explain the low outside shooting percentages we're seeing now is JUMP SHOT RANGE.
Right now, most skills on the transfer list aren't above PROMINENT, which is 10 out of 20 on the list of skills. Perhaps there are some 11's and 12's on teams right now, but that represents only 55%-60% of NBA Hall of Fame skill. Range in the rules is defined as:
A player with a higher jump range will find that the effectiveness of his jump shot decreases less with distance.
I think range is a deduction to shooting skill applied independently from defensive skill, so it is not based on the difference method discussed in this thread. Inside shot does not appear to have a similar deduction.
If I'm right about this (and only the BBs really know, but I think I've put together a decent explanation) outside shooting isn't very good compared to inside shooting because no player has any better than decent range right now. By that I mean no one is better than half way to the maximum skill level. in JUMP SHOT RANGE.
As the overall level of JUMP SHOT RANGE increases through training, outside shooting will get better. This should provide the re-balancing you're looking for in a game-driven way.