I am starting to use the dual wave. I used it last night for my son for potato skins as well as up'd his basal 20% after dual wave stopped. Wow did it work great! Stayed between 100 and 150 which is unheard of with this meal. Question is "If I do a dual wave for the meal, and he eats dessert that I also want to do a dual wave for, can I? I tried but it seemed that one time and that was it and you couldn't adjust it other than canceling and doing some math and starting all over again. Thanks!