In the first place I was being sarcastic as the OP had already been told that it would probably cost more to fix than to buy a new one.
Second, looking at the reference to Star cue, on McD's site it says
Star Warranty
• Limited Lifetime Warranty covers manufacturing defects
so they may decided to replace it for him and going back to the manufacturer was suggested but rejected by the OP.
Third, the OP comes on here and states that "I play better with it than any high end production or custom I've ever used." and is asking for a custom cue maker to repair the cue for him and does not listen to the advice given regarding the repair as he does not, understandably, realize that you can not fix the problem by taking the joint pin out trying to get to the problem.
Fourth, the OP never stated that the cue played any different once the noise started, therefore the repair is optional, not a matter of function.
So, back to #1... I was being sarcastic.
Bob Danielson