I had my 3D test pilot maiden the Tiger Moth today. CG was at 6 3/4" back from the leading edge of the fuel tank. Takeoff was from grass and the nose was so heavy it was on the edge of nosing over during taxi. Inverted flight required full down elevator. At a high idle and full up elevator it would not stall, it just mushed along. It had to be pulled upabruptlyto stall it, it didn't drop a wing.
My pilot said it flew well and didn't seem tail heavy. It took a little down trim to fly level at half throttle. Looking at the elevator on the ground the down trim was barelynoticeable.
I am moving the CG farther back, I now have it at about 7 3/8", or 5/8" farther than it was, that's using the finger tip method.
More photos and the maiden takeoff and landing.