Ryan, a few recommendations before you change pads to XP10. You still have stock rears and this will add to your front brake bias (nose dive given basic suspension) if you are pushing the car. And I suspect this is the cause for the front for perhaps overheating.
1) check if the rotors are slightly warpped; if so, you should have noticed this at the track when they get hot so perhaps truning them is worth it.
2) Check the same with your pads - measure the thickness of the pad at all four corners. Before putting then back on the turned rotors, scuff them on the asphalt so they get new bite. If they are wearing unevenly then the turned rotor will eat through the uneven part quicker but until then, braking performance will not be optimal.
Re performance, the difference between XP8 and XP10 is marginal for my driving in HPDE even with the CTSC, but then again, I am known to be easy on brakes. If you are really demanding on your brakes, the XP10 will be better suited under heat and they do have a higher coefficient of friction. But you really need to balance them with the rears. What BBK do you have on the front?
For street driving, and I know some others will disagree, I would not consider them safe unless
you are fully aware and anticipate their lack of bite on initial few stops or cold and would NOT rely on them for emergency braking situations. The XP8s were marginally better for street driving. And both squeal when cold though you can minimize some by chaffering the outside edges 1/8". And I too occasionally drive back from the track on the XP10s depending on how late we are caravaning.
I went with XP10 since I have dedicated street pads - Bobcats. And swapping pads on BBK is really a breeze. Even Larry learned how to do it