My criticism is that there is an insufficient range of adjustment.
I have used a Starmaster Chair (6" to 31" seat height range) with the 12.5", and it is barely adequate.
My Berlebach Charon goes up to 36", and it is more comfortable at the zenith with the scope.
A larger or taller scope might need more.
When I used an LX200 8" SCT, I had a chair with a 21" to 28" range and the top setting got used, but I wished it went lower to, say, 14" or so.
10" to 22" would have been inadequate for that scope.
The Starbound chair goes from 9" to 32", OK for a 6" to 14" dob.
So I have to ask, is this seat only for refractors?
How much would you gain by raising the hinge to the top of the board?
Edited by Starman1, 18 September 2019 - 05:56 PM.