Boot-fitters are sort of like car mechanics- finding the right one is difficult and most hardly know what they're doing. Most are simple staff trying to help out, but lacking the real knowledge to do actually solve problems. Some are purely out to make money, but they tend not to last in the long run. But there are many legit fitters out there, you just need to find where they are.
Where are you living? Perhaps we can recommend a good fitter in your area.