I'm curious about the third stage foundation wrap - that paper shroud that goes underneath the vacuform wrap.
The one pictured here is not the kit wrap. I scanned and made a couple practice shrouds first to make sure I had the forming of it down. It came out pretty good, I think.
View attachment 375392
But I'm concerned about the base. It's a slightly smaller OD than the coupler. I wonder if it should be the same OD, for gluing, or even overhang a bit. At least be flush, so the vacuform wrap overhangs, so the whole thing doesn't accidentally get pushed down into the rocket.
So, what do you think? Do I need to leave a little bit extra on the base - maybe cut outside the line a bit and then test fit and sand until it's the right OD? Or is the foundation shroud meant to be a little smaller?