Id rather see them enforce the boarding procedures first and then worry about middle seats. They should start telling people to step aside and wait their turn if they are boarding when F, MVPG, and MVP are boarding. I realize we wont get there any faster but its the principal of the matter! If these line jumpers were called out they'd be less likely to do it. Flying out of DEN two months ago either it was a gold convention or the entire seat configuration mustve been first class back in coach. They called F and MVPG and the whole waiting area mobbed the gate Its one of my huge pet peeves