My carbon fiber rocket with GPS transmission from the prototype G-wiz avionics bay screams to Mach 2.17 on a CTI N2850 motor, reaching about 33K ft. It was a perfect flight, with computer deployed airframe separation at apogee, and main parachute deployment at 800 ft. The GPS readings show us hitting high winds aloft as we drifted back down through 20K ft., which took the rocket horizontally at 55 MPH. But that luckily brought it back closer to the flight line for an easy recovery.