As KellyMonaghan states, there could be some type of contest event going on at US or IOA, but aren't those usually noted on their website? Barring special events and holidays, there must be some type of way to determine the best time to go for lowest attendance. I know, through research, that alot of the schools go back in session during the last 2 weeks in August for the South and Midwest at least. So it may be less crowded the last week in August into the first week of Sept. The Northeast (MA anyway) schools are starting Sept. 8 & 9. NH, end of August. I know it's hot then, but that's ok for me. I am guessing that mid week would be less crowded due to the fact that some people may just take long weekends that can drive there. I'm thinking of going on Tuesday and Wednesday, Aug. 31, Sept. 1 and hope for the best since I won't be staying on site and using FOTL. I'll post a report when I get back.