I was wondering the best way to switch between diets. Right now I'm feeding HPW, but I'm looking to switch to BML which is much easier to shop for and has a lot of stuff that Tazz seems to enjoy. I know that a change in diets too fast can have some adverse effects on them, I just want to make sure I do this right.

okay first night go 75% hpw 25% bml second night 50% hpw 50%bml next night 25%hpw 75%bml then the next night all bml.. that should ease them in slowly

If you was wanted to transition them even slower you could jbsgirl is onto something, but you could switch even less at a time and give them even longer to adjust. You are right my vet told me that a major change can really bother their tummies, because their digestive systems are so tiny and delicate.