I think mid tempo changed along the way, what used to be a slowie is now described on many dealers lists at least, as mid tempo. I know we're all getting older but some of them are ridiculous.
Having said that I do love the slower side of things & frequently throw in slower stuff @ Solid Hit Soul Club in London things like Bobby Mac Shy Guy, Linda & Pretenders Believe me, Four Gents Young girl beware, Barbara Lewis If You Love Her / Straighten Up Your Heart alongside the more uptempo stuff.