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Lee, the distance from OTA to rim of 2" barrel is 3 inches within better than 1/16th of an inch (or 76mm +/- 1.5mm).
The focuser sells for little over $100 from Bintel or Andrews (I'm sure either will match price of the other - sticking to one dealer for your astro purchases as much as possible is a good idea), which is an absolute bargain. The fine control is fine indeed, very nice!, and even in bad seeing you can find best focus fairly precisely by defocussing in and out and then splitting the difference.
No backlash or image shift, big improvement over the standard GSO Crayford, which itself is a big improvement over the R&P unit. It is still not "feather touch" if such a thing exists and is not just a marketing term. What I mean is that if you have heavy EPs/barlows/camera/binoviewer in the focuser, you need tension adjusted up, and it will take enough torque to turn the fine focuser to make the scope shake a little. Hope I'm making sense.
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