When I read your heading I just said to myself "now there's his problem". As Kevin said 52100 is not a beginner's steel; it's also not a steel for heat treating with a forge. Don't get me wrong. It can be done by looking for decalesance and recalesance and shortening your soak times a bit it's just my opinion that you can't do it consistently. You may think that you are soaking the steel at 1475° F but in reality with out a regulated high temperature oven you don't know if it's 1500° or even 1600°. A moderately complex steel like 52100 just isn't designed to heat treat with a forge.
Doug
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