Better to replace spark plugs earlier than 100K if running a tune? Also, any better than OEM sparkplug options available?

Hey guys, Livernois tune on a PB here.

Just wondering if:

1) It's advantageous to change the spark plugs before the 100K interval?
2) Would Livernois or other members recommend just running the OEM plugs and the OEM recommended gap, or is there any upgrade potential or possibly a different heat range or gap that might work better with the Livernois tune?

Thanks!