Brake Pad Compound Question

So I’ll be taking my C8 Z51 to the track next month (Buttonwillow 13CW) and need to get new pads. Last time I went I cooked the OE pads and rotors, and ended up with DBA Rotors on Carbotech 1521 street pads as replacements for street use. I know the 1521 pad is not rated for track use, so I'm looking at Carbotechs track focused pads.

I see a lot of people use mismatched pad compounds front to rear, and I’m wondering why. My understanding is that it’s beneficial when you can manually adjust brake biases but on a stock car that’s not really possible. I’m currently looking at XP10s, should I just stick with XP10 all around or do XP10 front with XP8 rears and if so why?

Thanks!

Edit: I should also say I am not running stock tires, at least that's the plan. I purchased a set of used Apex SM-10RS wheels that currently have Goodyear Supercar 3R tires on them. They have one day left (hopefully) before replacing just on tread, however I do have a durometer on the way to see if they are heatcycled out. My plan is to pick up a set of Continental ECFs to replace these S3Rs due to the price savings, I'm not setting any Time attack records and prefer more seat time to a few seconds of pace.