Keep doing eBay, etc and maintaining the stock up for Rev-Up and old Top-Flight (pre Great *Pains*) props for .90 and down. Other than that I prefer wood props, and that is mostly MA or Zinger. Have a dislike for zinger as way back when I was a pylon person (Q-500 / Sport / 1/4 midget) I could never carve a zinger to really go like a rev-up.