Quick update...
I spent some time on the LCT and then remounted the LNL. I've been able to dial the press in pretty well and I solved the problem of powder spilling during indexing by slightly backing out the knobs that lock the shell plate into place during index. That reduces how firmly the plate locks into place just enough to prevent powder from popping up and out.
With that fixed I believe I've accounted for most of the niggling issues that might either reduce the joy of using the press or slow down production. It's a welcome change to have to pull the handle only once per round - more than I would have expected. My rate of production is currently a bit faster than on my LCT as I'm still taking my time and developing the necessary repeatable motions of loading brass, seat bullet, pull handle, seat primer, repeat.
Enjoying the press more and more...