For years I always thought that sportsbooks made the odds worse on parlays then the actual lines would suggest. Yeah, I know -110 is technically the worst of it when the true odds are +100 but I always believed that a 2 team parlay of 2 teams both at -110 would pay out at less than the true value of those lines parlayed together. Parlays have no less value than straight bets, there's just more variance. Anyone know of books that shave off value?