Well I've enjoyed this scope and being my forst DOB i was surprised by how much I had to crane over to see anything even at it's highest point. My back is semi shot and a nights session was killing me the next day.
So I made a box 440 mm exactly in height for the DOB to sit on. Testing it and it is perfect for my height. Viewing Saturn Saturday night very high in the sky I was standing upright at the eye piece, so comfy
Through all it's height range it is immeasurably better on my back.
Box made up:
http://i23.photobucket.com/albums/b3...ps1f2707eb.jpg
On box:
http://i23.photobucket.com/albums/b3...psf000dcc1.jpg
In action:
http://i23.photobucket.com/albums/b3...ps00d0c986.jpg
No added vibration or anything. Very happy!