I have no quarrel with any of these posts, since I've tried pretty much all of them, and they all work. I do like pull/pull elevator when the configuration of the model favors it. However most models I've done in the last couple years have been with dual elevator pushrods running off of one side-mounted elevator servo. If you're building instead of ARFing, it's a simple matter to brace the pushrods at more or less the 1/4, 1/2 & 3/4 points, and that's plenty. With a model the size of the Citabria, I'd go 4-40 size for sure.

I like the DarrolCady.com pushrod components--CF hollow rods and steel ends. I glue the ends in with JB Weld. (Tried the black CA, had one come loose.)

Side-mounting the elevator servo allows the servo arm to rotate in a vertical plane--no side-to-side motion at all. You can go to Central Hobbies website and look at their description of the DEPS (dual elevator pushrod system) if this concept is not familiar.

But as MinnFlyer says, the Y'd steel ends off a Dave Brown pushrod or some alternate version do work pretty good--they're just a bit inelegant. I guess it depends on how much of a hurry you're in to get the bugger finished and in the air. Here in NH with a slow winter building season, I don't mind taking a bit longer to chase after a little more precision. But I have no doubt at all that the Midwest manual method would work fine. I've had some sweet flying planes done that way.