On my late model V8, the rear focusing is a bit tight for my taste. I would wish it be a tad easier to turn the knob. (no, I am not inadvertently locking it) It's not a huge issue, more a personal preference.

All of the other knob adjustments (front and rear bed extension) turn with little effort, without resistance.

I lubed the gear rails (slots, and a tad on the teeth as well) with white lithium grease and it helped a bit, but not as much as I would like. I also used some beeswax on the wood-to-wood parts. I was hoping for a suggestion of something else that I might do to make the focusing action more effortless.

Thx