Thats a nice site you have there. Never been there before today--I use the Muzzy 3 blade (which seems to be fairly common around here) and never had any type of problem with them. I've also used the Crimson Talons, while they made a nice blood trail, and a flew straight, the blades were too flimsy and would dull very easily.

Thanks again for posting that link--I found it to be very useful.