At nearly 40K, the suspension on the BW II was getting pretty tired. Not wanting to spend $800-1000 on a fancy new shock, I sent an old one to Traxxion dynamics for a rebuild/re-valve-re-spring. Got it swapped out yesterday and took a short ride today over some notably bumpy roads to see how much difference it made. The ride is somewhat stiffer, but still bump-compliant and fairly supple. Almost seems like the rear ride height is jacked up a little, probably due to the stiffer spring and general newness of the damping unit. I will have to do some experimenting to get it how I like. The settings they set it up with are very close to what the factory recommends as a starting point for the stock shock. All-in-all a worthwhile investment at around $325 shipped.