Regular P-120. SE, SX, etc. didn't exist then. I've had everything from a P-70 to a Titan in one or the other of the 3 I've had. Admittedly, I had the Titan dialed back to 115K. One of the Rookies flew with a brand new (then) P-120SE and not dialed back. I don't recall ever being able to keep the airplane from descending in the "hover". The SE airplane didn't last long as I had it in a max speed hard turn and a canard failed with the right wing breaking off. It was flight 13.
Actually, looking back at my spreadsheet, I lost the first Rookie to a right wing breaking off (P-80 powered). Maybe it was because it was the 8th flight that day.