Tri-Ceptor trident/Interceptor kitbash large rocket with tumble recovery, cti G-65 motor had a plugged ejection module preventing ejection, fortunately rocket stabilized in a horizontal spin and recovered from 1800' with no damage. Subsequent flights I removed the ejection charge and module and made sure to lightly ream the ejection charge hole to ensure there was no blockage. Rocket is6 feet long and uses 2" estes tubing and bt-50 aluminum lined side tubes for ported ejection.