Don't take too much from my opinion, but...
For my Power Forwards, I have 6 JS and 3 JR on one, and then 5 JS 7 JR on the other. Here are the stats from the past season (neither one has popped in either skill)
The 5 JS 7 JR one has 42% shooting from the field, including 42.4% from 3 point range.
The 6 JS 3 JR one has 44.3% shooting from the field, but only 34.6% from 3 point range.
-I play usually Run and Gun or Motion, with the occassional Princeton offensive style, not an inside offense.
-The 5 JS 7 JR has 6 inside shot, but the 6JS 3JR one has only 3 Inside shot.
-The Jump Range helps because neither has very good Driving. If your player has good enough driving, he should be able to get closer to the rim and not have to pull up for long shots.
For example, a LeBron James-style player would have 15 or so driving, because he can make his way to the basket any way he wants, but also 15 JS and 14 JR or so because, just look at his ability from 3 point range!! If he wanted, he could stay back and not use his driving, as if he didn't have good driving, or he could use his driving as if he couldn't shoot very well from farther out. I would prefer to pick one and use it in that situation.