Been out two times with my new morris penknife, wingspan a whopping 36", I have a JR 368 on the elevator and another the rudder. Amazing little servos, I cannot express how nice these servos are. I was going to go with some hitecs then I heard about the reprogramming problems. Although not really necessary I put a JR 450 gyro in it that I picked up from the JR guys at a swap meet (they are only 45 minutes away). The JR 368 on the rudder loved it and let me torque roll easily (even in 10 mph winds). Anyway, long story short those 368 servos put out some real power, they may cost more but they don't have the difficulties of the hitec 225 (had some of those) and precision is amazing.