G5 striker broadheads, who uses them?

[4mula]

So I bought some "Striker" broadheads by G5 I am going to try out, but I hate to waste a new set of blades to tune my bow with. Anybody have an extra set of dull blades laying around, I'll gladly send you a few bucks for them. I have the 100 grain version. Also any feedback on these?