I finished my UCD 60 last night. I solved the control surface linkage problem with Dubro Safety Lock Kwik Link 4-40 at one end of each control rod and 4-40 Ball Links at the other (see the pictures).

I also completed the OS 91 FS engine running-in over the weekend. I ran two full tanks of 15% 4-stroke CoolPower through the engine, mostly at full throttle and varying the needle jet richness. I've got the idle mixture set for good throttle response from idle up to full throttle, and full throttle down to idle. I've got the needle jet now set "just a bit" rich. It smokes a bit, but this is where I'll leave it for the first ten or so flights. It idles at around 2800 and tops out at around 8800.

As for the balancing issue, I removed a few un-needed metal nuts from the control rods in the back of the aircraft and placed my Tru-Turn Spinner on the nose. Now it balances with six (6) ounces of dead weight bolted on the front bottom. I do not have any extra weight on the crankshaft. As I get some experience with the aircraft, I can remove some (or maybe all) of this dead weight to push the CG back. I think it came out tail heavy because of the large aluminum nuts on the Dubro Heavy Duty Control Horns.

Unfortunately, weather here in North Carolina is cold, rainy, and dark. When we get a break in the weather, then I'll take her up for the maiden flight. Wish me luck.