I have been using Cats eye collimation tools on my SDM for nearly 5 months now and found that the collimating is the easiest I have ever performed. The collimation is very tight and only requires just the odd tweek with the barlowed laser to get the collimation very tight for imaging or viewing. Everything Jim's site says about his tools is 100% correct. The jupiter image on my SDM Blog was partly the result of the tight collimation obtained by this system.
So if you are looking for an endorsement to Jim's product I am happy to confirm its worth. Buy the full kit and you will never look back.
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