Hey Phmaximus, I read the whole thread, I find his binding description to go exactly opposite of what I noticed in my smaller scale test, and I have way more angle of axle rotation (roll) than his test, with absolutely no binding or resistance. But he sounds so dead serious in his tests that I'll have to retry a non parallel setup and play withthe spacing of the top links.

With small scale operated by one finger it is very easy to detect binding or lack of binding. The only thing that happened when I compressed 1 side only was the axle going up, was not trying to rotate (when viewing the axle from the side) so the axle was not binding.

I will try and explain why my setup binds when not parallel when i have a little more time (must leave for work), I think his solution might solve the binding in a certain range of the travel, while having the arms not parallel, but I still kind of doubt a fully parallel (in all axes) setup can bind but I'll certainly do more tests to make sure!

Thanks for posting the info!

Fred