By the way, Kevin, have you thought about spreading the payload of your ZWO mount sideways (e.g., using a side-by-side mounts, like I do with my dual saddle plate) instead of stacking stuff taller, and thus further away from the RA axis?
All the way back to the RST-135 (and perhaps even further back to Hobym), stain wave mounts have emphasized the need to keep the moment arm short. Emcan claims that they have designed their mount so the declination plate just 80mm away from the RA axis. I just measured my dual saddle plate, and it is 75mm away from the RA axis .
My dual saddle plate itself adds another 10mm (flexture? whats that?), and a PrimaLuce Losmandy dovetail clamp another 25mm or so).
The more I look at the Emcan mount, the uglier it is (although not as ugly and with gaudy colors as the ZWO mounts). Just compare to what the RST-135 and RST-135e look like. The Chinese mounts look like they were designed by Neanderthals. Years at Apple has taught me that well engineered stuff don't have to also be ugly.
Chen
