Cluckcluck is right. You just follow the instructions on each set-up, but start the crosses using the reference tension you plan to use in the crosses. I use 54/52, so I start my crosses @ 56 (ref +4) for the first three, then drop to 50 (ref -2) for x's 4 through 18.
Then finish off the last x's per the instructions.
Head YouTek Prestige MP (18x20) - Wilson Nat Gut 17/MSV Co-Focus 1.18
(58/56) - Gamma X-Els