Tks, guys. I think the prop I like best is a 19x8. Getting the best thrust from it and it will pull my Midwest unlimitied vert (barely). Haven't had enough flights on it to really know, still trimming the plane. I'm running a Perry pump and an Enya 3 and the throttle is instant. WOT is about 7500 rpm's with a wide blade 19x8.