Thanks for the advice ogivemeahome. I will try some thin epoxy next time I laminate fins.
Well I'm pleased to announce Stage Fright had two successful flights! flying almost vertically and staging beautifully on Estes D12-0 & D12-5's.
The booster tumbled well and landed about 20' from the pad undamaged each time. Ejection was right at apogee and my 18" chute carried the sustainer about a kilometer away in the 'breeze', so for the second flight I cut a 2.5" spill hole in the chute and I'd hazard a guess it went close to a kilometer and a half this time, then about another 500 meters along the ground with me literally running after it
(Thank you very much Nic for spotting me and giving me a ride back on the rocket bike