I have only used them for stump shooting. I haven't hunted small game with them. My bow is sighted in for 100grain broadheads/fieldtips, so I use the same weight on my judo tips. There should not be too much difference in the accuracy within 30yds. They are a pretty durable head, so shooting your weight will not be a problem. The arms on the head have springs, so they can grab on to things.

Like any new piece of equipment, you should practice with it until you are comfortable, before you take it in the field, no matter the game you hunt.