Hay Pete aka Rocktman612
Both of my birds/Corsairs were balanced at 5 1/8 for the maiden's and after several flights I moved it back to 5 1/4, so with the geard down it flies a bit nose heavy but when the gear is up it flies great no up or down trim , But a lot has to due with how the wing and horizontal stab are set to the thrust line.
also if you have a bit of warshout in the tips.
If you would like I can go thru my old hand written notes and give you what I set mine at during the build
Cheers Bob T