Thanks - FYI, a little update:

- I've got the Dillon 550B all set up and running. I've taken 105 rounds to the range (started w/5...did a little praying before I pulled the trigger...then took the next 100). So far, I'm 104/105 with good rounds. I knew that one round was suspect because of a slight notch in the primer, but I wanted to see if it was an issue. I'm running about 5.4 grains - and about 1.15" long on the 9mm.
- I also bought the Cabela's Tumbler (model 400, I think)...the brass, coupled with the plated bullets, comes out looking better than a lot of the factory stuff I've purchased.
- I've gone "all-in" on embracing the cross dominance. Unbelievable - I wonder if that has always been the case. I'm definitely shooting much tighter patterns closer to the center of the target.