[RCM78]

I'm trying to remember... I'd say yoyodyne knows more then me. Which # is the bore and which is the stroke? I'm thinkin bore X stroke. In which case I was wrong. The longer stroke model will move more fluid faster and provide a stiffer brake lever. Shorter stroke model provides more feel (aka slightly mushier lever).

Do you keep the lever close to the bar? If so a stiff lever may work better for you.