Both.....On my Bengal, I have a Simms X Coil (4.5", 5oz) for balance and to help w/vibration reduction. Although I really don't think my Bengal needed much help in the latter.
Tried the small Simms Mini-S Coil off my son's bow first and decided I wanted tiny bit more weight for just a touch more forward balance.
Problem I have with longer stabilizers for huntng, is there is just that much more sticking out to bump on limbs and/or snag in brush
2009 Martin Bengal M2 Pro Cam w/factory STS & CCS.....66lbs, 29" DL, 422gr @ 272fps, Winners Choice string/cable, Trophy Taker drop-away Rest, Scott Release
1996 Martin Firecat XRG Pro Series w/Ultra Sonic wheels.....69lbs, 29" DL, 465gr @ 245fps, w/fingers & Martin leather glove