Quick way to find out. Level flight advance the throttle and see what the pitch response is. When the CLT thing blossomed out in the PRA, my wife was the editor of the PRA magazine. We were pulsed by the then President and asked if we were going to print Ken's article. We hadn't seen it. When we got our hands on it we did have it printed only to have the PRA board complain. Subsequent discussion with Ken found that he was happy flying a gyro that didn't have the CLT. My 90hp Benson certainly did not have CLT and in the days when you could not get dual, both my wife and I soloed the ship with no PIO problems.
Little Nellie had fuel tanks below the seat as we'll as the rocket pods. Ken personally told me that the thrust line was above the c.g.