I checked the CG and found it about 3" behind the leading edge. Typically I target about 2 7/8" back, which can be achieved by adding 10 quarters behind the back plate or by lengthening the nose.
I chose to lengthen the nose by adding a piece of 3/8" thick plywood between the front of the fuselage and the motor mount. This option added about 0.7 ounces to the model vs. about 2 ounces for 10 quarters.
A friend of mine got home a few minutes before dusk, so off to the field we went.
The first flight was uneventful, but required a little up elevator trim. The model turns quickly and has no apparent faults.
It was too dark for a second flight, but I had accomplished what was needed, a trim flight. I am now ready for the Wichita race next week.
See you there!