I used to drive motorcycles that had both a center stand (double leg) and side stand installed. I understand the preference for the center stands that have two legs, but I would not use one on a heavily loaded touring bike. Bike frames are not designed for putting that much of a load on that part of the frame to support one wheel up in the air if you are running four panniers with weight on both the front and rear.

Photo is from a ferry waiting area near the GAP and C&O, they apparently did not want people leaning bikes against buildings, note the painted marking on the ground.




I made a stand similar to the Click Stand from a tent pole, use that on my titanium bike and on my road bike. Both of those bikes are designed with the seat stays close together where attached at the seat tube, that forms a small pocket that I can put that tent pole into, use a rubber foot from a trekking pole to protect the frame finish..