Booking rules are the club politics, written down
Every squash club has an understanding about who gets the good courts. Full members before off-peak members, members before guests, nobody hogging Tuesday at seven every week for a year. On a paper sheet this is enforced socially, which works until it does not, and then it becomes a committee matter.
Writing the rules down, and letting the booking system enforce the parts it can, takes the club secretary out of the middle of it. One advance-booking window, a maximum booking length per court, and approval for requests the committee wants to see cover a lot of ground. Tiered windows by membership type and per-member caps are not enforced by the product today, so those remain club policy.
