So I'm moving to get my customers on a season rate with equal monthly payments. 12 payments over the course of the year is outta the question for me, not a choice. I don't want to deal with tracking down payments during the winter months when I'm not working, I don't want to get stiffed by people who will pay through the season and not during the winter, and it's just generally not something I want to do. My season runs pretty much from mid April to mid November. The question is, should I do 7 payments from May through November, or 8 from May through December. Or does it matter?