Gambling shark, in a long term set, yes the overs should balance out, but if anything, I would think more unders. Remember before the All Star break, majority of overs, the numbers get pushed up, now the under cycle. Just had a break before the turn. As far as numbers being adjusted by results, it does happen, but in a roundabout way not by linesmakers. The linemakers track/open vs. close. Let's say yesterday al the games went under, but many openers were bet over. Even though it went for the books, the bettors moved the lines. If a certain, team, pitcher of other factor results in line movement, linemakers spot it, and push number to prevent movement. So if all the people out there say, unders are hot, and start backing unders, because of current results, then, you will some results influencing line adjustments. To get back to the original thread, I think bases are random, to a point, but I would think unders are what is the hot commodity, and one day is tough for an abrupt change. If you had 2-3 consecutive under days, a much larger run and sampling, plus the resultant movement, then I would look at overs. Hope that makes sense. Best Wishes...OF