We don't figure the profit-sharing until February or so. Then its simple to see how much is left to stay under the max. I guess if one of us (like me) was maxing individual contributions, and the others were insistent on maxing the profit-sharing they were entitled to I could go over, but we just limit the profit sharing to the max that any one of us can take without going over.
Otherwise, doesn't it turn into a big penalty for the people who make higher individual contributions, because they get less than an "equal" share of profit sharing?