The Tekin sounds promising. What about some of the motors with adjustable timing like http://www3.towerhobbies.com/cgi-bin...?&I=LXTNU7&P=7 Anyone with experience with those? My 3s are kinda weak,MA 5000 probably don't fit that bill, but it was free. I also have a couple more of similar quality, SPC 5000's. I did think about a 28mm Medusa, but was thinking the 4 pole would still be torquey. I'm just trying to keep it off it's lid once it reaches the 25mph range, a problem that I once would have loved to have :)