Well - was cleaning the tandem on Friday and noticed that a paired set of spokes had pulled through the rear rim. Wheel is 5 years and about 10k miles old. We didn't even notice a problem during our last ride. Sent the pic to Rolf and want to look at my options.
Been wanting to run dual disks and depending on what Rolf is going to do (if anything) I think I'll investigate a good set of disk wheels. Only issue is that i'll need a new fork as well.