I just bought Harry Taylors 35%, it came with a 25-12 airmodels 3 blade on slimline mufflers (which are restrictive). The plane flies great. In 100 degree heat the verticle was awesome. It was turning 6500 rpms. The only thing I didn't like was I had to fly with lots of throttle. There was not much power before 1/2. I put in a throttle curve and now I can fly lower on the stick. My FC 2.6 extra was flown at 1/4 on the horizontal and it was still fast.