David Wile is a little off on his LNL generations: the Pro-7 was first, Projector 2nd, and the LNL is current. Hornady based this series on the same cast aluminum press. As they learned, their designers began fooling with the base plate/shell plate features. That's why you have to watch out for design differences between the shell plates made for each of the 3 generation presses. As for tinkering, the only fussing I have had to do with any of the Pro series is to tweek the timing. Keep those pawls clean and lightly lubed for reliable operation.
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