Thanks for the link to the Papineau and Rosemont guys. They seem to be new, and their info is hard to find.
I don't like bad-mouthing people without horror stories experienced first-hand, otherwise it is gossip to me. I bought my 1st wood bow, a case for the bow, and a bass wheel from Jules St Michel and those were fine. Their bass wheels are nice, with a big inflatable tire of 19cm diameter and a decent price. Their prices on strings seem quite fair too. A pack of Spiro Mittels is a pack of Spiro Mittels right? Get a good price, get the pack in your hands, pay up and go.
For setups Gilles Blouin and company do fine at Violins Etc too. Affordable, good work, not such a fast turnaround time though.
Mario is the best, but you have to book months in advance and he's quite expensive. Turnaround time is very fast, and work is excellent. He might complain if you bring him a cheap bass to work on. ;-)