Alrighty...So today was the first drive in anger after sorting out the servo horn issue but now I've found a real big prob.
The factory fitted turnbuckle on the servo/servo saver rig actually Cuts threw the drive shaft...I mean it's actually cutting like it's a bit on a lathe.
When you steer hard left lock the chunky bit of the turnbuckle crosses the drive shaft and acts like a blade and cuts it.
Also in the same location the left tab on the servo actually touches the drive shaft slightly to.
I can only assume this is happening to others. I suggest everyone check you're drive shafts
J