[SkidmoreGarage]

Think I got it, yours looks a lot like mine, but I am just replacing the whole outer rocker (which fit like junk), along with the inner rocker, a pillar, and kick panel. If you already cut it- you don't gain or lose anything with regard to fit by cutting again. Do you have the replacement piece to compare the profile?

If you are looking for a recommendation, I would cut it after the outer rocker no longer sits on the inner rocker, this will reduce the chance that water will sit on the backside of your weld for extended periods of time. It doesn't make any sense to me that they spot welded through a slow drainage area on these trucks... I plan to panel bond this section. Another benefit of moving further towards the b pillar is that you can clean and patch more of the inner rocker.