Definitely does look like the middle would be a nice place to be in this case. The only problem is that the line is so offset that starting near the pin end puts you about 10 boat lengths back right off the start (unless they're fetching the first mark). In national level competitions you're not likely to see a start line set like that.This is what happens when new racers compete with more experienced racers. Some try to follow one of the frequent racers. This tends to concentrate boats on one of the ends. That end maybe favored but if the crowd is there then you’ll be blanketed and most go no where. Look at the boats at the far end. All are going near max speed. Look at the space in the middle of the line. That’s where you might find clear air. Clean air means speed.
Watch the starts of national level races. All racers are looking for clear air