Great mechanism. I didn't have time to seriously look at the meta after I solved the grid yesterday, but overnight I had an intuition as to the first step, and after a quick course correction, I intuited all the steps in short order before I started to test it out.
Things went fairly smoothly, except that I hit a major speed bump that knocked me off the road. I found N, V and E fairly quickly (Perot was the major confirmation that I was on the right track, having earlier thought he would be the answer to 63D). However, I sure struggled to find the other two letters. I first submitted NEVER, overlooking that the title would reject that choice out of hand because it had two E's. When that failed, it took me about seven passes in total to find the O and the L.
I had been hoping in a way that the answer would be NAVEL, as that would have had an amusing connection to the title...but alas that was not to be.