RE: Best broadhead for a Recurve
If your Thunderheads are working for you, there's no reason to change. If it ain't broke don't fix it eh? If you'd like to try a two blade anyways, Zwickeys and Magnus are nice. Sine you're using Thunderheads I'm assuming you're using aluminum or carbon shafts. (I'm not aware of a glue on Thunderhead.) I shot steelforce heads for a little bit. They're shaving sharp out of the package, but they didn't fly with my field points for me. That's about the only screw-in broadhead I've any experience with. I like the broadhead wrenches for sharpening. I don't know the name of mine, but a similar one I believe is called acusharp. It's the same thing as Redi-edge. I like them because you don't have to worry so much about keeping the same angle, and because those teeth sharpen really well. In about 20 passes with one it'll be shaving. I hope you've a good season.
God bless,
Brandan