Mike, I think that is great Estes goes through that much trouble to test fly new rockets. I have always built Estes rockets per the plans with no modifications what so ever and all my flights have been perfect except for the old R2-D2. He almost nosed dived into the ground, but the chute deployed in time The 2 builds I have that I have not flown yet is the Tomcat and the Maxi X-Wing, I still have my doubts if they will be successful flights. How did your test flights go with those two birds? Also what sealer does Estes use on the wood? Thanks David