Are your dogs not honoring him when he's trailing or after its jumped ? If they aren't honoring him when he's trailing your other dogs probably can't smell it. If he's jumped and your dogs won't put in with him he may be running trash.
I agree with you Nathan...more than likely the bluetick is opening on a cold track...after so many times the dogs honor him and can't smell the track or do not get excited enough to run it...so after so many times they quit honoring...been there done that...I don't like cold nosed dogs for hog dogs...I like medium nosed dogs with the knack to find one pretty quick...
you are thinking the bluetick is loose baying but my bet is he is just gritty enough to break the bay...unless of course you have first hand experience on his baying style...