I think the vectored thrust 2-axis units were produced for the comp-arf jets.

I have seen tumbles and inverted flat spins on a Eurofirebird with thrust vectoring vanes behind the turbine. One time the jet did not come out of the inverted flat spin. It landed flat just 10 feet in front of the pilot. The turbine was shutdown by the pilot when the jet passed the "breakout altitude" for spin recovery.

My thought is keep your jet flying. I have a Roo with canards I added to it and I will not do the infamous "chicken flop". The 3D planes have propwash on the tail for control and nearly instant throttle response for pulling out as needed.