1f - looking back over your post, you mentioned milk jug tests - what did you find? I'm curious how the Partition faired. I shoot 63 gr AA 4350 under a 180 Partition for 2925 in my 24" SAUM. It is my elk load.
Another question - does either of your two SAUM's leave ejector marks in any of your cases? My 7 does at the mildest loads possible but nice rounded primers, and next to no case head expansion. In fact, its hard to measure any case head expansion.
