A couple of recommendations, based on experience with my Mig, which I am working on now.

Stab. After the stab fluttered on its last flight, I have reinforced the tubes in the stab. with 1/8 carbon plates glued to the top and bottom of the tubes. These plates now capture the bolts which transmit torque to the stab.

After the flutter there is no sign of structural damage to the servo mount or the servo, JR6301 HV.

Servos. I have replaced the JR. With the Futaba HPS A700, superb servo, ultra powerful, tightest gears, perfect for the job( Despite an earlier suggestion, on another thread that these servos will only be used in a few specialist applications, the A 700 was RC. Japan,s top selling Futaba servo in the last half year ! )

During this work I discovered that some fuselage skin had seperated from the structure near the inboard ends of the lower tunnel, where the rear jet pipes plug in. This was fixed by gluing a 1/8 th glass board to the flange of the rear fuselage tunnels and this piece now extends down( or up) onto the fusekage structure and even onto the rear wing tube. It goes almost to the top of the center fuselage flange and is tge width of the flange. Vastly stronger.

Perhaps I could also add that I injected a considerable amount if Hysol into the area of the fin rods, to prevent the cracking I found earlier.This was done by drilling small holes alongside the rods allowing injection of the Hysol.

Seems to have worked, no more cracking and no effect from the flutter incident.

DG.

My fuel tanks are from Turbine Connection, long defunct. The company that is, not the tanks !

OK, the Futabas are in. Another tip. I did mount the Futabas with the screws iriginall used for the JR. I found they are a few thou. thinner than the screws supplied with the Futabas. Swapped over the screws and it further stiifened the servo mounting.

I also wedged the servos in place so any flutter force is unable to move the servo longitudinally. Every little helps to combat flutter !