i have a blackstone too - my experience, put box 1 and 16 A & F on one K1 all the rest of 16 can be entered on this K1,
2nd K1 box 2 with 16 G.
I do not have a H, if it is there then i would say 3rd K1 with Box 3 as 0 and the data entered for 16 H. This worked for me try it
