Steve,
Same function, different mechanics. We'll have to get a hold of a Kepplinger and see how it compares to the Miller we have installed in our test action. Price point is a big question mark at the moment, we'll have to see what the investment will look like in tooling up. I'm hoping someone will chime in that has had experience with a Miller that was installed by our predecessors. The one in our test action is really neat - the unset let-off is similar to the two-stage in weight but is much smoother with little discernible second stage. The set pull is nice and crisp with no over-travel.
Best, Dan