first come first served is fine if its a clean splitter in an obvious area but lets say i go out and find some nice crack that in obvious squamish style is full of dirt and moss and it takes me 4 8-hour days over 2 weekends to scrub the thing clean. then when i come back on the 5th day, 3rd weekend by now, for the send some asshole says "snooze ya lose i just climbed this crack".... um no. i put in the effort of investing time to clean it, you didn't. i get to make the first ascent within a length of time proportional to the investment of effort. offenders to this rule will discover what it feels like to have your colon wire brushed with your own head.