This is non-sensical, how can you justify having maintenance on the weekend when its prime time, or for that matter on any other day than mon and weds. I do my coil runs on friday, I do my AK runs on tuesday. Guess what I do on mondays? Nothing. My point is, it doesnt matter when you run maintenance because there will always be somebody sitting aroun dto complain about it, so just live with it and plan accordingly.