Rocketjunkie - Thanks for the info. I thought it was a pretty old kit. My oldest rocket, built in '96 I think.
She's made at least 35 flights so far. Flew it 3 times last year, each time it cracked off a fin on landing. Noticed the aging tube was giving up as opposed to glue or plywood failure. Rebuild undertaken during the Covid timeout. Slotted the tube, cut new fins "with tabs", lot's of epoxy inside the tube, and a new paint job. She's headed to Geneseo, NY this weekend to try out her new fins.