I have a brand new Lee Loadmaster (2012) setup for 9mm. When I index after adding powder, it jerks enough to spill powder. I use 5.2 gr of Unique powder, so it makes the case pretty full. I have tried loosening tension on the shell plate a bit, but when I made it loose enough to reduce the jerkiness, it didn't index correctly. I previously used the Pro 1000 and didn't experience this issue (lots of other challenges though) I have watched the youtube videos and Lees videos on adjustments, but am still spilling powder. Any suggestions?