I thought I read once it was different greases for the spider and the shaft, is that the case? Once upon a time there were two separate greases spec'd by Toyota, that was later condensed to a single grease, moly is generally seems to be considered OK, and you want the grease to be NLGI Grade 2.
If you jack it for full droop do you add until you get seepage, I've heard just give it 2/3 pumps vs add until you get seepage, but I've read some people say thats too much, halp. Driveshaft recommendations seems to be all over the place from grease until the shaft starts to extend, vs just give it a pump or two when you do the U-joints, to only add when clunking, the main concern is adding too much grease and until your shaft is no longer able to compress reducing the travel and translating that force to other areas that aren't meant to absorb it.