I appreciate the feedback. I may very well get some brake dust shields, and I'm leaning toward sticking with silver again. Just finished clearcoating them:
California98Civic makes a good point about cold air density, but on the other hand, mounting all 4 wheels costs about $60 and I doubt I'd ever make back that difference. I'm going to need new RE92's in the front after winter so it would cost the same for me if I put 2 winter tires on my Insight rims and 2 on the HX rims, but part of the point of these rims was so that I wouldn't need to keep paying to have my wheels remounted twice a year.
I might appreciate the lighter weight in the summer as my driving tends to be more spirited then, too, but likely these are all going to have my winter tires on them.