On Sun, 1 Mar 2020 17:02:42 -0800 (PST), Christopher Tidy
wrote:

Thanks for the responses. Which is more important, the long bake at red heat or the super-slow cooling?

I could put the HSS in a crucible and dial back the power a little each hour using a variac.

Chris
It's both - get the piece up to temp through and through, then cool
VERY slowly so the crystals don't form