Well after a few months of tinkering around, I finally finished my DV. I put a DA-50 up front with a carbon fiber spinner and a 22x8 prop. I am using all hitec digital servos, and lithium ion batteries. I have a 2400 for main rx power and a 1200 as backup. I took it out for the first time this morning and WOW, is it docile. I thought I had it balaced, but on a second check it was quite tail heavy. I pushed the batteries all the way up front and added a few ounced of lead the make it flyable. I had 2 very successful flights, then on the third flight, I got hit with some interference on take off. I cut the power to the engine and it came down pretty hard. The landing gear bent a little and the prop broke up. I made sure to range check the plane before flight, but after I was hit, I did another range check and I got some flutter. I am not able to explain where the flutter is coming from. I will test each servo and then try to run the antenna outside the fuse. Anyway, next week when I get a new prop and I figure out what happened, I'll leave another post. If anyone has any idea what might be causing the flutter, let me know.