Ok.  Here is what I did.  1/8" 5160 steel, ground to 120 grit.  Heatted in my gas forge till it was a light orange color (mid afternoon with overcast skies.)  Let soak for 5-8 min, quenched in peanut oil.  Did that twice and checked with file.  File cut very nice.  Not hard.  Repeat a third time with same results.  One idea was that I over cooked it.  And to top it off, they warped!  I can deal with the warp, but I do not know what I did with the hardness.