OK, I'm about to tackle the NEBDR in a few weeks. I will be on my KTM 790 (tubeLESS) and my son is going to ride my Adventurized 350 EXC with the tubLISS system. We are also riding with others on a DR650 (tubes) and a Yammy STen (tubeless). I usually carry plugs and compressor. Should we pack extra tubliss tubes (need both sizes), or just the generic 21"HD tube, since the 21" tube can fix any of the tires on any bike in a pinch? Thanks for you feedback.