I avoid pruning whenever possible. Although it can open the light to the lower nodes.. you can create alot of stress for the plant if you do to much at one time.

The plant will shed leaves also, ontop of the leaves you prune. so keep that in mind... prune maybe 1 or 2 fan leaves to open up some lower branches..anything more isn't really required.. and can actually cause more bad than good.

Cheers,
Bob.