Experimental Rocket goes in ballistic after both primary and backup ejection systems fail. It was later discovered that under high G loading, t' 3V batteries were movin' aft sometimes....causin' t' positive end o' t' batteries t' break contact. Ya scallywag! T' problem was corrected usin' electrical tape t' firmly hold t' batteries in t' holders. Well, blow me down! Also, an altimeter based ejection device is now used as 'primary', leavin' t' other two 'timer' devices as backups. Ahoy! This was it's 2nd and final flight.....