I'm just a data point for thought processes, so take this all with a grain of salt. I also haven't skied my 187 R110s yet. So there's that. Which is a huge "that."
Anyway, I'm close to your size at 5'8" 160, on Lange RS130 generally. My 2013 HALS Owl Renegade is 186. I ordered the 187 R110 for my daily driver in JP. And I have sold my 184 M102 to the hunch that I'll never ski it again.
I'm also considering a AM100 and/or an RC85 for a groomer-zoomer. Two very different skis, but we'll see how well this R110 actually performs on firmer groomers. I'm guessing it hooks up as well as the M102 did. Hence, I might as well drop down to the RC85 for my next quiver ski.
So to sum that up-- I'm of the un-educated belief that an R110 can handle DD duties of JP soft snow resorts better than any other ski that has deserved my pre-order.
And every ski I buy is always the second-longest of the lineup based on my size, weight, skill. If I were 6'+, and as fit as I am, I'd be on the longest ski. But I'm not. The only reason I'd ever choose the 3rd longest skis would be because I'm teaching and I don't want to think, or try.
People our size are second longest ski skiers. Meaning-- we should be buying whatever is the second longest ski of whatever factory run you're looking at.
(PS, this is why Dynastar 192 and 182 has been so painful to people my size. The second longest size has always been too short.) Thank God HL sees this and has a 186/7 for riders like me.
180 in a reverse-cambered ski? I can muster a few needs for it. For an R110, I don't theorize I'd lose any top-end that I wouldn't need anyway. It'd probably just be more playful on the groomers and more accessible in the forest, while giving up some GS properties. (that would arguably be better suited towards an actual GS groomer zoomer.)