Ringo has replied -- as he said at the Github link, there is no IAC Unlimited category selection now, but he will add it later. You have to select CIVA rules to get Unlimited for the time being. However, during the next step, it does by default show "40" as the Positioning K value. But you can change that manually. Also, when printing and saving the Forms, you can select IAC Forms. Then you get what we use here in IAC-sanctioned contests, not the CIVA forms. I am glad Wes brought this up here -- a good reminder that everything has to be carefully checked down to the finest detail. "Devil is in the Details" -- my motto.