One of my 45s prefers the MMP Tan and 2 prefer the Harvester smooth blue sabot. So far i have not tried the blue CR sabot in the tighter 2. They might shoot fine. They are too loose in my Elite 45.

I don't have a Contender in 45 but my Elite 45 likes 90gr of BH209 with the 200gr XTP and 100-110gr with the 200gr SST. My old Accura 45 1-28 twist did well with similar loads.