My SST .40 was a trike gear design I bought as a framed-up project. I added a 1/4" ply plate and a set of aluminum main gear (1" forward of LE), a Klett tailwheel, and pants. On takeoff, throttleup must be made gradually, and the spring steering of the tailwheel makes for wide radius turns. The tendency is for a lot of rudder to counter the mushy tailwheel response, but when the tail lifts, you now have full left rudder causing a ground loop. I'm going to experiment with a little braided dacron fishing line to limit the stretch of the springs to firm up tailwheel response. The mains work fine, and the plane looks sportier, especially with the pants.