The thunder heads will work fine. Having said that I much prefer a broadhead that attaches its blades to the furrel with more than sticking them under the tip and a collar at the rear.

Take a look at slick tricks. I have not shot anything with mine yet as I got them after last hunting season but they fly perfectly and I don't think there is a tougher replaceable blade head out there. 100% solid steel and a blade locking system you couldn't get loose with a hammer.