Partial Deadlifts

I am on week 2 of ABBH II and was wondering if there is a good description of the proper technique/form to performing the partial deadlift. It seems as though I am recruiting mostly low back and glutes (very sore by the way!) I don’t feel like I am involving any hamstrings in the move. I have tried to find the exercise description in the search with no luck. Any help would be greatly appreciated! Thank you