Not to crap on anyone's parade, but I just used a thin cutting disc on my Dremel and cut slots in the XT60 contacts that the board fit into. The slots were just about the same width of the current sensor's board, and fit nice and snug. If you cut the slots all the way to the plastic, they will fit snugly right up against the board. Add solder, and your all set.
It seems in this hobby there are 1,034 ways to skin the same cat.