I had a new early boat and the dam centerboard had to be shaved to fit... there obviously have been several generations of boards. My second and third generation boat had alot of hum from the foils. The most recent boat 2012 a 5 or 6th generation boat has alot of play in the trunk, no hum. Two questions 1. in my new 2012 laser should I push or pull it the board in light winds for a better performance ( It wobbles a 1/2 " in the trunk)? 2. I know its against class rules, but whats the concept of having a company fair or align the rudder and dagger board ? I see that some advertisements for used boats have had these adjustments?