The powder drop was the big thing that kept me away -- the original Mark7 owner's bulls#!t about the precision and accuracy of the original powder drop was off-putting to the say the least. With the new small drum, the mechanical powder drop is finally actually good. The 0.02gr SD is the limit precision for my scale and across multiple 10-20 check runs the ES is averaging 0.06gr -- which is as good as I get on my well-tuned 1050.
My setup is Mark7 Evo Pro with the extra guide rod, mechanical powder drop, stacked primer system, regular MBF, and the regular case feeder. Now that the powder drop is working as it should, the most annoying thing is the case feeder that jams way too often.