RE: Lyman Universal Trimmer..! Yuck!
DG,
If you will polish the collet with a little J-Bs, Flitz or other metal polish; it will help tremendously. You'll still get some "stickers", but it will be 1 in 20 cases rather than 1 in 3.
"Every moving thing that liveth, I give unto you as meat" (Gen 9:3)
Trust God..........but keep your powder dry!