I have a early 2000's TV NP101 (SN 1685) with the stock 2.0" focuser. Currently I'm using it with TV Binoviewer + 2x Powermate to get to focus with 26mm Panoptics or 13mm Naglers. That's a lot to hang off the focuser and I'm wondering if I can go better on the focuser. Also, at high power the 1:1 focus is quite sensitive, and have thought of adding a 10:1 focus mechanism.
Is it worth going to something like the Feathertouch 2.0" + TV Adapter? Its pricey though.... I would be very interested to hear of your experiences with fit, function and performance vs just upgrading the rack mechanism.