So I've heard that you have to get a good lab when you're processing negatives, but do you need to worry when you're just processing slides? That is, can the lab's equipment and people affect how your slides are going to turn out? Or can you just go to any old lab and the results will be the same? I've recently taken a bundle of 36 slides, and looking to get them processed. There's a few labs around, although I don't know if they have any difference in quality, but some seem to be cheaper than others.