I spent the extra money and got the Benchrest Ultra Micrometer Die from Forster and it failed after 1 year. To give Forster a nod, they sent me new parts for it, but it always produced rounds that had no less than 5 thou of runout, even before the repair. I pulled my trusty old hand-me-down forster seating die off the shelf and it produces rounds with .001 or less of runout. I may spend more time fine tuning it for initial setup, but I have higher quality rounds, and I don't have to go out and buy a 200-300 dollar micrometer die again. I won't be buying another fancy Forster micrometer die, and plan on sticking to the basic one I have, or if I have to I will buy the Redding. Sometimes more money/more high tech/more adjustments don't = better results.