What problems did they have? FLSAC hasn't been tested on a server with alot of people on it (As i can't host a server for more than a hour or 2 per day, i have a dynamic ip and noone else has offered to) but it shouldn't cause any noticeable load, it only scans the files on a server once when its initaly loaded and stores the result so it can compare it with what the user submits.