Wheel hop in REVERSE?

I believe the book was giving an example with the transmission at 0* to make it simple to understand. They are telling you that "wherever" the transmission "is" the pinion should be 3-4* down "from that". .......just like everyone has told you all along.
Ok so here is my latest and greatest. I reversed the shims and no have a 2.7 degree down. Test drove and 100% better but still backing up a slight up grade i get some shudder not quite the thud i had before. So now i have a total of 5.1 between tranny down and rear down. I have a set of 2 degree shims, too much --' more or less to add.