Brian,

Thanks for the advice. I will need to move the splice from that very thin area at the center of the wing, which is where it would fall with 36" sheets. Using 48" from the rear, I could move the splice off the wing altogether. This would mean using another ply doubler at the splice, but maybe that's best. The current ply double only covers the wing and about two inches fore and aft.

Thanks again.
Paul