Ice here is a system im going to be using on my 34%'r i was going to use 2 8611's for my rudder but i discovered this idea from another site.

With this system i can mount one 8611 in the tail of the plane and still not have balancing issue's it will be hard linked to the rudder. see the pic.

Im having this gentlemen making me this plate also. since he has done a few with success.