Kyle, Thanks for the input. I may try the cigar method but I feel it maybe limited to pipes that I intend to keep.
My thoughts with your method is it does not necessarily fix the problem, it just masks them. Not that I intend to sell any of the pipes I am restoring right now. In the future, after I build up skills, I would not mind selling the occasional refurb to help supplement my spending habits. I know if I was buying a used pipe from someone that was reconditioned, I would be highly disappointed if there was any odor coming from the pipe, be it tobacco, must/mildew, or anything else that smells.
After a bit more research, I see multiple references to getting the musty smell out by filling the bowl 1/2 full with alcohol then burning it off. Anyone have an opinion on this?