When you say "R comp" do you mean a 100 tread wear sticky, or one of the 00-50 tread wear DOT super glue slicks (R1s, R7s, etc.)?
If you're not gonna go bonkers, empty your bank account, and get Motons or the like (which are even more $$$$ than the MCS setup, correct?), the 510s seem like the next best thing.