I have exchanged the Rack & Pinion Focuser with a Starlight Feather Touch Rack & Pinion Focuser. This change has removed 99.9% of all Chromatic Aberration (CA). Thus, making this a very fine instrument.
The GOTO mount, now with its third revision with it Hand Control is now a very stable platform for observation.
I also installed a 15" Orion extension on the mount. This now prevents the telescope from running into the mount.
Pros: Go Glass (Objective lens)
Cons: The Focuser...
Would recommend: Yes
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