Hi Rod , if you notice , I have one and a few others here have the 127 NG triplets as well here at IIS , I have set mine up out side tonight for a session on Mars, and its a real test for any scope , being so bright and RED!! , that tests CA of any refractor lense to the max .
Mine passes that test with flying colours .Its a very good piece (s) of glass .
I got mine 2nd hand here at IIS classifieds and the origonal owner got it directly from Norhtgroup/Joctech and had no problems at all with customer service , dialog at all , he spoke very highly on that before I brought it .
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So its a vote from me , as the scope as I own it is worth way more than the asking price .
These have to be one of the bargian's of the decade .
Hope this helps , Rod .
Brian.