bigbulls, Muzzys and montecs are both excellent choices. If you are shooting 100 grn heads, the 4 blade stinger will be ready pretty soon. I saw a picture of the prototype head and it looks pretty wicked. In any case you won't go wrong with the Muzzys, they are my personaly head of choice.

TAKE YOUR KIDS HUNTING AND YOU WON'T BE HUNTING FOR YOUR KIDS