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Thanks for the input folks. To clarify, I have a Bintel version, thus I got GSO EP's, the 32, 15 and 9mm. I was looking at the Sombrero with all, but the 9mm was still blurry, that obviously takes it up to 138x. The star test was a bit confusing. I could see concentric circles but couldn't tell how perfectly round they were due to the "worms" over the top of the circles (if that makes any sense).
One of my collimation probs is my use of the $29 Cheshire which is much praised on this site (I know, poor workman....). By the doco I've seen, including the one recommended in this thread, I should be sighting using the crosshairs of the tool, not the reflection of the crosshairs in the centre of the picture. My eye simply cannot focus on the crosshairs so close to my eye, even when I put on my glasses. The crosshairs don't focus until I'm about 6" away from the tool, by which time the rest of the picture through that tiny hole is useless. With my eye up to the tool, I can't see the outer edge of the focuser to see how centred the secondary is. I managed to do that by taking the 45 degree piece out of the tool. This gave me the view of the secondary I needed, but I couldn't see the cross-hairs. When I rotate the tool in the focuser, the blurred junction seems to move around. When I take out the tool and view it from the bottom end, the crosshairs appear off centre. ie if I line up the cross hairs and the pin-hole for the eye, the tool appears to be tilted. Isn't it great trying to explain technical things in words. It seems to me I need a longer sight tube with cross-hairs actually in the centre to achieve what I think I need to do.
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