I decided I wanted to configure the vertical metrics (TypoAscender, TypoDescender, etc.) instead of having fontlab do it manually. I'm very confused and after reading this: http://typophile.com/node/13081 even more confused.
Here's a picture of the metrics. One question I have is: should the TypoAscender + TypoDescender + TypoLineGap equal the UPM size of 1000? I have many other questions but I'll start there.
Should I give up and go back to having it calculate the values automatically?