I don't think TF affects flyball hitters as much, the guys with uppercut swings that produce towering HR hitters do just fine like Thome, or the Toronto Blue Jays. But just watching the game, it seems quite clear that the line drive hitters who square up the ball don't get the same results. I don't know how many times it looked like Morneau had a clear HR but it died before it even got to the wall. I'm no geo-thermal-nuclear-physist-meteorologist but it certainly seems like some force hurts balls on a lower trajectory while ignoring balls that get up fast. Aside from Mauer and Morneau, Kubel also had these issues, it could be the players but what if it's the swing? Shouldn't the Twins hedge their bets? Commendably, Saltalamacchia had a career best 28% line drive percentage last year and a career low 38% flyball rate. Both look like outliers until more data is collected, but the Twins (like most clubs) clearly prefer line drive hitters, but the park might not be the most beneficial to these guys, at least from a power perspective.