RE: my chipmunk
John,
I have the WM Chippy also. OS-91FS SII Pumped mounted inverted with a remote glow, fuel dot, 15x7 APC. Mine has the retracts, but I changed the wheels to larger ones for grass nd I just leave them down in flight. Kinda wish I would have bought the fixed gear version.
What problems are you having with the mount?
Luke