@dmgadry61, what intensity did you complete at? I will only have kitchen sink to do for the badge after this week. I did It seems like thin air yesterday and barely managed to finish. Started at 100%, dropped to 90 after 45 minutes and 80 at some point. Even then I was hitting the HR ‘target’ on most of of the Thin Air section. And feeling utterly horrible for the last half hour.
I did eat and take on plenty of isotonic fluids, and the fan was going full steam in a 4-5°C cave, so I think I managed it pretty well other than intensity. Any tips welcome as I’m really not looking forward to taking on the Sink (and if UK weather is bad next weekend, I probably will be).