I think if I were to build another one I might opt for one of the 91 HZ-R speed motors because they look so damn cool. I still can't get over the power the 105 makes and I would imagine the 91 makes more than enough, too. It will be really interesting to me to see what people are getting for flight times with the 91 vs. the 105. My last few flights with the 105 have been quite a bit longer than I ever imagined it would run. Granted, the last 2 minutes or so is just hovering and slow flying but I've been getting over 9-1/2 minutes.
