Thanks for the reply, John.

I was hoping the retouching would be very minimal... just erasing a miniscule line and maybe a tiny taped area. How wide is the edge density increase? If it's 1/8 total (both edges) that's not terrible but 1/2 inch is more of a pain than it's worth... more so than taking two separate exposures to stitch especially with non-moving subjects and consistent lighting.