I have great luck with Muzzys too, and I love that they prevent spin-offs, but still release a fish very easily when you are ready. With any more than 2 barbs, you are going to reduce penetration due to the added energy it takes to push all that hardware through the fish's flesh, and the added holding ability won't mean much if they aren't far enough in the fish.

For a low draw weight bow, I'd stick with the hollow ground gar point for best penetration. Then use the trick about bending the barbs in towards the shaft a wee bit to keep teh hole small and reduce drag.Resharpen with a curved surface like a small diameter (5" or 6") grinding wheel and cool often to keep the steel's temper, or just buy replacement points and take them with you.

Hollow ground gar point...



as opposed to the regular flat ground carp point...



Good luck. Let us know what you try and what works best for you.