A few days back I assembled the new SOLO kit.
The BT-55 (pre-colored) tube is very robust, thick like a normal 55 sized tube.
I haven't purchased any of the smaller (BT-20 or 50 sized) Hobby Lobby kits

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Hans "Chris" Michielssen
Old/New NAR # 19086 SR

www.oddlrockets.com
www.modelrocketbuilding.blogspot.com
http://www.nar.org/educational-reso...ing-techniques/
Your results may vary
"Nose cones roll, be careful with that."
Every spaceman needs a ray gun.
Look out - I'm the Meister Shyster!