I used pull pull evevator on another model, were i was concerned more with throw rod (flex) slop.
due to the length of the fuselage & tail of plane.
It takes awhile to set up because you have to run two "up" elev. cables to one side of servo, and two "down" elev. cables to
the other side.
Adjustments for split elevators is made by threading in or out at clevis attachment.
On this model i didnt want to add two servos to the tail section,as it was already slightly tail heavy.
It takes alot more cable but the plus side is there is no slop, and the resulting control on elevator and rudder is fantastic!

Ive heard from those that have completed building this kit that the plane ended up tail heavy.
I assumed it was due to the rear mounted rudder servo.
My thought was to move the rudder servo forward to help with balance. By adding duel servos to the tail i would replace that weight x2
Alfredbmor is using a 4 stroker engine so his plane may end up balancing fairly close.