Another option is to get a solid tube dob and if you want to move to AP you can fit some tube rings and mount it on a EQ mount. I have been using a 10" SW dob in this fashion for a couple of years now on a HEQ5 pro without issue, it's now on an NEQ6 which is a bit better in windy conditions but needs an extra counterweight due to a higher center of gravity. The 10" SW solid tube is lighter than the GSO equivalent, has a Pyrex mirror and has enough focus travel for AP.
Rick
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