agreed there is a course that i play frequently that has a monday, thursday special it is $24 and you can play all day (7am-7pm) I often play as a single and practice and as long as I don't hold up play (which i don't) then I see nothing wrong with it... Now that said I would never try this on a saturday or even friday afternoon mostly mid-week when no one is there anyway.. It has helped my game immensely. Besides most of the time I feel as though I am the only one repairing ball marks so they should be glad I play there