Hi, I have an 08 Classic LT. Before I bought it I test drove an 09 Custom and earlier this week I test drove an 07 Custom. What I noticed on the very 1st test drive of the 09 and reaffirmed it with the 07 is the Custom shifts very very smoothly and quietly. Much more then the Classic. Why is this? Is it because of the different shifter or is there actually a different tranny?