Just wanted to relay my 1st experience with "A" superroc, in preparation for our "Snowball Open" next month. Had two launches. Rocket came in @ 150cms,(max). Bottom was about 10" of BT-5; Then I made a "piston" on the end of a carbon fiber rod, about 3/16" transitioning to 1/8" . Flew quite well but, separated. Got some good 20 lb dacron this time , instead of the cheap fishing line I had. Hopefully will get a qualified flight, next time out. Has anyone else trioed these ultra thin fiber rods?