Good advice from opjose! He helped me with my cg questions as well!

I just maidened mine last week. I kept the servos in the rear and used a heavier 40cc SPE I had laying around. Balanced one finger in front of the wing tubes with the batteries on either side of the fuel tank (about 6.5" back) which is further back than the instructions tell you. It was still a tad nose heavy requiring a little bit of down elevator when inverted. Even with all of the weight (mine was 13-1/2 lbs. without fuel), it floats like a trainer. It's not going to be a big time 3D monster with all of the weight (they weigh in at about 9.5-10 lbs., but it still hovered (up high), and tumbled very well. It goes into a flat spin very easily, but took some time to get it to stop spinning. If I had to do it over again, I would do your setup with the lighter DLE30, and move the servos forward, and mount the batteries on the firewall. It's a beefy airplane, but built tough. I dropped a wheel on the last flight and was able to land on one wheel for a foot or so before the right landing gear dug in, then it flipped. No damage found other than creasing the fin. I did change the landing gear to a huge beefy alum. gear I had off another airplane, and land on grass so I needed more clearance and strength to handle the bumps. I left the wheel pants off as well. I now have 6" clearance with a 20" prop. I upgrade the tail wheel assemby as well. I added fl. yellow trim sheet stripes to the wing tips, horiz. stab, and top of the fin/rudder which totally improved the visiblity in the air, and looks decent on the airframe. I'm digging it for sure, and got lots of folks looking it over at the field. For $179, it's a very nice flyer, my fellow pilots were very surprised and impressed with it's flying capability and ultra slow landing speeds. DG