That's a relief! 6 is OK but most of the stuff (not GM) that I've decked in the past 20 years has "cleaned" up in the first pass (.002-.003).
Your .022 was scary... I haven't seen anything stock take over .010 ever!

An interesting thread with some expert advise on quench distance:
https://ls1tech.com/forums/generatio...nch-tight.html

I'm shooting for just under .040 on my build.

 

good info here, thanks!