A couple of years back, Larrin was talking about marquenching for bainite and discussed the possibility that a relatively quick say 30 minute soak right above Ms to get like an 80/20 martensite to bainite mix. IIRC, he was using 52100 as an example of a steel where this could work to some benefit. Has anyone tried this or heard of someone who has? I was also wondering about this in the context of soe "Deep' hardening steels like 52100 perhaps being not as well suited for low tempt salt, etc quench as deeper hardening steels like O1 and L6. I seem to recall that when Kevin Cashen did his experiments with 52100 and slightly lower austenizing temps, things worked better with medium speed oil quenches.