My Concours 14 is by far the heaviest bike I've riden, but it is definitely not the slowest. The suspension is remarkably quick for a big bike and is quite adjustable. Unfortunately, I don't know what (spring load or dampening rate) or which way (stiffer or softer) to adjust to enhance or reduce various actions.
For instance, when lightly loaded, the bike seems to want to "stand up" a little too abruptly when it encounters bumps in a corner.
I'm looking for a resource book on suspension adjustments and/or feedback based on personal experience?