Not meaning to hyjack your thread, but I see you have the Hyroad X in your arsenal. Do you have both of your Hyroads drilled similarly? How much difference is there between the pearl and the X that you can see?
I have the X at 4.5" pin-pap and the Pearl at 5.25' pip-pap, same angles. I see enough difference to carry both as I feel they complement each other rather well. I can start with the X, and once I start leaving 10 pins from it finishing too flat, I can switch to the Pearl for a bit quicker response on the friction.
My advice is to drill the X with a shorter pin-pap than you would usually go with to match the cover and core up a bit better. R2X solid is decently strong, and I hit mine with a 4000 pad to break the polish.