I'm happy enough with my RCBS Uniflow, much more so now that I put a micrometer adjustment on it. It does reasonably well on the H4831SC.....but I still end up setting it to throw slightly light charges and using a trickler to get exact weights.
That being said I want to get and try one of these:
http://harrellsprec.com/index.php?cr...on=show_detail