ORIGINAL: frequent flyer
The Leo I had I used The dowel that came with it. It had two rods wrapped with string and epoxy, you know the typical two to one set up.
It seems to be very stiff no slack. I wasn't concerned abbout the weight because I put my YS140 in it because I didn't have a 110 engine. It should be fibe don't you think? It's just a practice plane until I finish the Black Magic.
The majority of Leo's I see on the competition circuit when they where popular had two metal geared high touque mini servo's mounted at the rear, pic shows my Swallow that I converted in that way, much better linkage with no slop, and additionally helps with the weight of a four stroke up front.
Mike