I followed the description you gave in this thread to determine the location of the exit holes, however to achieve a straight run with no bend inside the plane my exit holes come out about 5" in front of the leading edge of the stab and about 12.5" from the elevator control horn. Clearly this is WAY to long of a distance for the 0.70 rods.
This distance is fine. My Supreme's hat the exit 11" in front of the elevator horn connection. And my Pinnacle's have the exits about 10.5" in front of the elevator horn.
You can stiffen the 0.070" pushrods by gluing a short length of Central Hobbies 1/8" pushrod tube over the top of the 0.070 rods. I actually use these 1/8 inch pushrods with 2mm fittings on the end for the clevis. I started doing that last summer. It works really well. I didn't have any of the external pushrod ends and needed to come up with something. I had some 2mm ends for the 1/8in tubes and its a perfect fit.
There is another solution to this exit location. Move your elevator control horns closer to the fuse. AND or move the elevator servo further back toward the rear of the model.
YOU DO NOT WANT ANY BEND, BOW, CURVE, or anything you might think makes the linkage better than straight. And I mean absolutely straight. NO bends.
As soon as you stick a bend in it the result will be friction regardless of the tube guides you use. They need to go straight.
Troy Newman