I'm thinking about this, too. The Stealth & Thor are on the "short list" for my L2 project and I'd like to strengthen them for the eventual K motor. This looks a lot easier than laying up fiberglass sheets.
If you have any questions what so ever I'd be glad to answer them.
We also just laminated a 6" sono-tube with some 6" carbon sleeving not listed on the website. Be glad to post some pictures of the finished tube if desired.
Oh and we recently lowered the price on 4" fiberglass sleeving, and did some more testing and discovered the 4" sleeving will fit from 2" diameter tubing all the way up to 5". Great stuff for most any medium sized rocket.
I would if I could, but I think with this last renewal on the ATF permit I have had for six years, they send me a letter telling me that it may take a little while longer and "here is a letter saying business as usual" for a while. Anyone else going through the renewal blues?