In my humble, owned-far-too-many-cues-in-my-lifetime opinion:
If you're looking to have a HIGH END cue redone, go to the original cuemaker. Newer BB, Tasc, Szam, Searing, etc.
If you're looking to get a player or midrange cue done...and plan on USING it...go with a reputable person that does good work. I know of a few who can knock refinish work out of the park, regardless of whether or not they had any hand in building the cue to begin with.
Scot at Proficient is awesome.
Mike Webb is awesome.
Steve Klein is awesome.
No need to spend 5 bills on a new finish, when you can get equally amazing work at a fraction of the cost.
That said - if you ever sent a Szam to anyone other than Barry...you may be disowned and told to leave the country.
Mark