RE: braodhead for my 10 year old?????
I would go with a smaller head. A three blade with no more than 1 1/16" cutting diameter. The Rocky turbo or whatever they are calling it these days. The NAP Nitron or a sonic would be a good choice in a three blade model. Magnus stingers, Muzzy phantoms and similiarly sized two blade cut on contacts would also be great choices. I would personaly probably go with the 2 blade stinger in 100 or 125 grn. remember since the arrow speeds are going to be low you want to maximize arrow weight to get the last bit of KE you can for his setup. Keep shots close and he should be fine.