The "ice size" argument for me is really a lot more than simply adapting to the dimensions of a smaller ice surface. It's about adjusting to the pace of the game, both in terms of the physical speed of the players and the time you have to make decisions and to react. Those factors also lead to a more physical game where more effort is required to get to the spots on the ice you want to be and to maintain your position there. Again, for some guys this is no problem, for others it takes some time, and for others still, it's a deal breaker.