Good info to have. I am fairly new to reloads myself, but try to keep mine shallow as well. We have a group of 5 that get together for a good time reloading. Due to the process, someone is always left out. His job is to verify each bullet is seated properly, primers are in correctly, and mic each bullet that comes down the production line. We try to keep our error within +/- 10%. Periodically stopping to do a barrel test. Drop into barrell, drop out of barrel, and cycle through magazine and chamber with no problems. Yeah alot of steps, but don't want anyone being bored.