I have the R back since last evening with the 10" 350 lb/in springs installed. Now sitting about 25 1/4" front and back (dialed up the fronts a tad from "full down" and dialed down the rear perches about an inch from "full up"). Given what you shared with us about stock spring rates and rear being > than front rates, perhaps it explains why I needed 10" springs in back to balance out the stiffer (7" 450 lb/in) springs in front. After horsing around today to and from work, I'm not sure I'd want to reduce the front rates: they provide nice resistance to brake dive and some roll resistance (even with the OEM fsb). Road irregularities are felt more than before but with the Ohlins they don't upset the chassis (or at least much less than with stock). The reduced unsprung weight likely also plays a factor in helping the suspension settle more quickly than before. Impacts in the rear are perhaps a tad more than stock, but again the impact is not harsh or jarring and the chassis settles almost instantly. I also feel much less of a tendency to "push" in turns but no sense that the back end was coming loose (of course with our wimpy OEM rsb). The car feels more alive, more planted, and begging for more speed. I would have been tempted to dial in a touch more damping/rebound into the Ohlins, but Tom told me to keep my paws off the damper knobs until I have another few hundred miles on it.
These impressions are all very preliminary and might change when I get to a track or with simply more seat time. Just thought I would toss 'em out there for discussion's sake.