Thanks for the replies

sonotube I think I may of seen this, is it light weight?

Last weekend when we had excellent weather. I did a couple of over nighters. Well sunday afternoon I was napping (must of been the beer and Deep Purple) and my scope was still setup iin the yard. When I woke there was a gale blowing and had blown over my scope. Lucky it fell on the side away from where the focuser and Finder are located. But the tube
did suffer a lil bit of warping and now it doesn't rotate in the rings when they are loosened. More of a pain in the @$$ than anything so I'm thinking of a new tube and perhaps designing a ring system that can easily be rotated. Apart from that the scope didn't suffer to much damage and still columates well. But I wonder if when I rotate it now and retighten the rings if this doesn't move the secondary ever so slightly. Not that I have noticed it.

Thanks for the website