Thanks for the comments, all.
Chris: Here's the "order of operation" I used, right or wrong:
1) Forged the blade and drew out the tang flat and straight (i.e. didn't twist or bend it to profile)
2) Ground the bevels on the blade
3) Twisted and bent the tang to the handle profile
4) Double quenched the blade, leaving the handle exposed both times.
I actually built a little jig of sorts for the quenches that helped me to get the blade quenched quickly and accurately without accidentally quenching the handle.