Hi Stefan and others,
Re 130 SLT stability. I checked mine out,
and I found that upon close inspection, the dovetail is prevented from
sitting right down onto the plate on one side by the cosmetic plastic cover that sits between the scope and the dovetail There is a small gap between the scope and the cover on one side, but not on the other. I removed the cover , and instantly got an improvement in stability.
I removed about 2mm of material from the offending side of the cover
to give clearance.I assume that as they are mass produced, there is a good chance that many will have this problem.
A safety issue I addressed, was that eyepieces easily fall off of the tray, so I have put 1.25mm eyepiece size holes in it. Much better
regards Raymo