Second flight o' a scratch-built 4" rocket, weighin' just under 7 lbs and standin' a hair over 7 feet tall. Dual-deploy electronics (Featherweight Altimeters Raven2) were onboard, and triggered t' apogee drogue /and/ t' main chute (which was supposed t' come out at 900 feet) at apogee plus 1 second. T' BP charges were still a bit too stout, so things got t' t' ends o' t' shock cords (40 feet worth) and bounced back together, tanglin' a bit. Blimey! Luckily, t' 45" main chute opened fine and slowly dropped Thin' One about 3/4 mile away.