130 miles on a tandem - respect! Are you captain or stoker?

We did an MTB event on the weekend just past (a Polaris challenge) on our full-suss mtb "banana bike" and my backside has only started to recover - I find I spend almost all of the time seated on the tandem. I don't know about distance but we rode for a total of 11 hours over the weekend in what for the UK was very warm temperatures, its the furthest and longest we have ever ridden it - and we didn't murder each other!