Quick mini update! The Nature's Variety LI turkey is a big hit. Between that and the Merrick Thanksgiving dinner the kitties are completely off the high-phosphorous venison and have switched to a COMPLETELY canned diet of low-phosphorous turkey/duck!
No more crunchie dust, no treats, nada. They're eating plenty and their coats are beautiful and they're active and happy and getting along with each other better than they have in years (which may be coincidence, but still). Fitzy is getting his urine checked Wednesday morning.