First thing I have got to ask is what is a flight stabilizer?(on the bottom of the plane.) I have told you that I took the model and changed 3 things with Alpha jet. I am old school and would never use a gyro.
The first thing I did was add more overhang on the upper surface(extended it forward) for higher alpha. Secondly, I change the prop to a 7 inch and it is also is a wide prop.(See my opinions I voiced on forum dealing with picking a prop). The third is that I redesigned the rudder which is way different then yours. It is just like Jamie changing the transport to fit his needs.
In order to do high alpha and hovering, you must have full control of all 3 functions. When you loose rudder, wing wobble occurs. I just found a way to by-pass the loss of rudder and I am now able to go into hovering(this plane is very difficult in vertical for it doesn't take much to loose it's balance).
The first video shows I can hold still, rotate CW-CCW to counteract torque produced by the prop using the rudder. For the nay sayers, I even showed the nose and my hand being flat. The second video shows that from a high alpha it goes into hovering with no wing movement. This was done early morning with no wind. The key is "as you change rpms, you need to adjust rudder which is very sensitive." Since there is no camera man, I make do.
In fact, I am modifying the Alpha system to take a 64 EDF with new features. This is my preview before I attempt "VTOL". Try to see if it is going to work.
I like to design and fly unique planes.