Nope, BigJ, once open they are as smooth as any 2 blade broadhead on the market which brings up another point, 2 blades penetrating better than 3 blades etc....

I'll just have to take one with Muzzy's next fall just to see. I had both in my quiver this year but of course too, I'm shooting a faster more KE setup and the only deer I shot with it this year I spined......not a good example. [&:]