Shawn, The Arbalest & Mangonel pics I posted above both have full flying stabs. In my view that is the way to go. Main benefits are easier to build, lighter, easier to set up and easier to trim than conventional stabs with elevators. I have gone away from pull- pull on rudder and stab to avoid trim variations from cable stretch and temperature changes. All feels pretty locked in. I have made an integrated stab/ rudder servo mount that uses pushrods for both stab and rudder. This makes the all flying stab is easy to remove with one set screw without disturbing the linkage set up. If you wish, feel free to PM me with your e mail address and I will send you some sketches/ pics. that will show you how it works.
Cheers Bill
Temperature changes won't affect trim with pull/pull as both cables will expand or contract the same amount. Pushrods will affect trim as the expansion or contraction is only on one side.
I use pull/pull on ruddet and elevator and never have to adjust trims regardless of the temperature. That's one of the benefits for pull/pull.
I haven't had any trim issues with cable stretch. As long as the cables are good quality and not too light for the job, they don't stretch too much. Even then I adjust each side the same amount as I've found they sttetch evenly anyway.
I use nylon coated stainless steel fishing trace.
I prefer pull/pull, but ultimately depends on weight distribution for CG.
Cheers
Scott