How often should i expect to re-grind and re-gap the points on my delco ignition?
At what intervals do you guys typically peek under the distributor cap?

I'm up to 1000 miles on a set of NOS delco-remy points that seem great so far.
The cheap replacement points have a center hole in one contact where the erosion occurs on my non-holy delco points. Has anyone tried these?
https://www.rockauto.com/en/moreinfo.php?pk=933501&cc=1489131&jsn=858

To re-surface cratered points I've tried gradually closing them on a dremel cutoff wheel... any other methods?

'59 Chevy Suburban, NAPCO