While my Altair Astro Sabre Mount is great for star hopping, the stiction in the bearings starts to become a problem when you add a heavier scope. The TMB80 wasn’t a problem, but with the long focal length 150mm RC, I was beginning to find that precisely centring the object would cause you to overshoot the target sometimes. The other problem is with this scope and the Van Slyke turret fitted, it was impossible to balance…