Comor has the best prices, and I'm not ragging on them, but last year I bought my skis there and it took something like a month and a half to get a pair of wide brakes in from Rossi, and 3 calls before that. Regardless, good product selection, and maybe the best staff wasn't there when I purchased my skis (been back since and had good service).
However, for ski repairs and servicing, I still trust snowcovers more. You might pay a bit more, but the techs have a lot of experience there and know what they are doing extremely well.