Question: I have my first DA 50 and am the only person at my field with one. It runs well on the ground but in the air it does not open up and is very ruff sounding as in slow throttle response and not a constant hum but more broken up. I am still in the break in period about 1gal in it so far. I am running a XOAR 22X8 BCH. It was sergested that a shallower pitch may help for the break in so I am trying a 22x6 tomorrow. Please if you have any ideas please feel free to tell me. Thank you