Honestly, I question the use of Light Side Monks in groups period at times. The healing is much better done by a healer, the DPS done by a Light Monk is poor, (even more so now with double ToD and Ninja Spy), which leaves the buffs.

Of which none of them really seem to be enough to validate your position there. 25% reuction in SP use? It's nice, but well, you could just outright take an extra mage and probably gain more SP and DPS from it. The to hit bonuses? I've yet to hear of a class that needs it.

Of course, at the lower levels/solo it might work out diffrently, but I'm begining to get to the point where I can't see why people would take a light monk over juust about anything else.