I went from a RS140 to the Club Sport this year. I am finishing up a review on the CS and will post soon. I hear you on marking up the plastic soles of these boots. Just a FWIW, my RS's are 9 years old and very marked up on each end of the boot, but its never affected the contact with the binding. Never used the slip on rubbers until this year of Covid, when I started walking through parking lots. The plastic soles hold up fine, at least walking from lodge to slopes. I am hoping next season is back to normal, and I will boot up in the lodge. The slip on rubbers work great for parking lots, but I don't like carrying them on my person while skiing. So far, I stash them in a plastic bag some where outside the lodge and retrieve them at the end of the day. If I skied with a backpack, which I don't in the resort, that would take care of the issue. I agree with you on the slip on rubbers, but not using is not that bad either. I guess it depends on where you are walking and how far. The plastic soles are a bit slippery on ice for sure.