This was my CAR Lvl. 2 attempt at Roc Lake 12 in June 2010. I am/was flying a dual deployment modified BSD 38 Special on an Aerotech I284W. The flight was perfect and straight up but as it approached mach the shockwave over the altimeters pressure port fooled the sensor into thinking it had reached apogee. This caused the apogee drouge to deploy right after boost, shredding the rocket at approx 700mph. Fortunately the camera survived the destruction for your viewing pleasure!