Dustin
RHC 45 is not a likely result from that HT. As a matter of fact, I'd predict more like RHC62 (though possibly some grain growth.) If you are getting a reading of 45, I think there might be something affecting the reading. Possibilities would include a burr - testing on a non-parallel surface - something on the blade or anvil as little as a human hair - or lots of other things. I have used 1950F (plus cryo) for customers who wanted 440C harder than normal (and were willing to sacrifice toughness). It came out of quench at 62 and out of cryo at 63.5.
1 hr at 1950 may not give the blade characteristics you want, but it did not lead to RHC45.
Hope that helps some.
Rob!