The speakers from my pre-Fender Super Redhead need a recone, so I had my GF drop them off at what's supposed to be the premier Boston repair shop, New England Speaker. I couldn't have been treated much worse... they didn't seem to care at all what kind of speakers they were, and said they were planning to order a recone kit from their usual supplier. They couldn't have wanted to get me off the phone any faster. Is this a problem? Will a generic kit sound the same as they did originally?