RE: Merlin??
While I don't shoot a Merlin, maintainence issues is one of those things I doubt you will find with a Merlin.
Of the ones I have seen, the fit and finish of the Merlins has been superior to any other bow I have every looked at. While some may not like the feel of the Merlin, I don't think you will find anybody that will bash their quality.
If I had a Merlin dealer anywhere remotely close to me, I would probably be shooting one as well.