I was in my local camera shop recently and asked if they ever carried chemicals to do E-6 at home. I've been reading about experiences here in doing E-6 at home, looking for whether it's hard/easy, consistent or not, expensive or not and all that. The salesman said that one reason he doesn't carry it is that it's not consistent enough for most people. And the reason he cited was that some processing machines (used to?) precisely flash the film with light as part of the process. Of course, a chemical kit is just chemicals and is a compromise for the sake of not having the flashing step available to us folk in our homes. I've read quite a lot here on the achievable results with E-6 at home, so my question is mostly just a curious one about those machines flashing the film. Is this true for older or current commercial processing machines?