Robin
I have a heavy imaging rig - ST8300 + FW8 - hanging off the back of mine. I also have an Optec focuser which adds more weight.
I piggyback my short-tube ED80 on top and have a counterweight under the nose of the scope - its a reasonably heavy weight. It seems to balance ok - if anything it is not consistent between east and west - I suspect because of the location of the motor for the focuser.
Agree with pushing it as far forward as possible
Pete
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