If you are planning on carrying the little lady around with you mschwaig, you might want to consider the Speedmaster because of its higher torque rating. Some of my fellow America riders may not totally agree with me on this, but that is something worth considering. I love my America, but I wish it had a little more low end pulling power. That's the main reason I have recently had an interest in the 904 Big Bore kit. Regardless, either way you decide to go, I'm sure you will be glad you picked Triumph.
Have fun,
Stan