I have a relatively new Dura Ace group, and recently rode two other bikes with DA shifting. The other shifters had a much tighter feel, especially shifting down. The inner shifter seemed very tight (harder to push) and the chain moved seemingly crisper. Mine seems to move very easy, kind of like it has a lot of play or loose cable. Is there a way to adjust the shifters? Could it be a difference of cables? I really liked the feel of the "tighter" shifting.