I guess I don't really need light arrows, just my lack of bowhunting knowledge made me think they'd be better since they'd be faster and the deer couldn't string jump as much...but my bow is pretty quiet so if adding knock down power would be better than going for speed that'd be fine too. Any arrow suggestions on a college budget? I'm looking at the Cabela's Stalker Extremes possibly but those are like 8.4 gpi I think, is that considered light still?