First of all, I think that 20 members and their families might be a big crew. We made our calculations for 10 families for a theoretical maximum of 40 skiers (members and their families). Rules. I cannot stress enough what Horton states regarding reasonable people. Most of your members and visitors will be reasonable. But the few that are not will be a PITA. Some members will think they own the place. Some regular visitors will think the same. For schedules, get an online booking system. www.supersaas.com is the best I could find. You need to be kind of software-savy for the initial setup, but then it works like a breeze. Be strict regarding no-shows, and be strict regarding show-up time if the lake is full. If you have issues regarding preferred times (e.g. everyone wants to ski Sat between 10 AM and noon), you will have to establish a rotation for booking that time slot. Do not accept lawyers as members (just joking on this one...). Ballers. My experience might be different as I am not in the USA. I am happy to host any Baller/TWSF member that comes to Chile (maybe I will be banned after that...). That has allowed me to both meet exceptional people and have places to ski overseas. "Ballers" cannot be regular skiers of the lake, though. Finally, almost for sure the person in charge will have rough days because of those 2-3 unreasonable people out of the 20 members. One recommendation: have a way of sacking a member when needed. One rotten apple can crap a whole case, and one crappy member can make life miserable for the other 19. When the lake starts filling, Matt will not be that laid back. I speak from experience...