I have done this walk twice. the first time was more than 20 years ago with 5 others and 2 of them were novices to walking.3 went in the pub at Ribblehead so 3 of us sat on top of Whernside for 45 minutes waiting for them .It was getting murky when we got to Ingleborough and went up that in a thick mist and it was dark by the time we finished the walk. That took us 12 hours.
5 years ago 2 of us did it again on a hot day and got round it 9.5 hours after wasting time by going straight up Whernside on a path that is between Ivescar and Winterscales instead of sticking to the main path that loops round. I too found the last climb up to Ingleborough tough in the heat.
Peter, getting slightly damp feet was not a problem, in fact after seeing the weather forecast was for some rain I still decided to wear them rather than boots. I have walked in Nike running shoes occasionally and do like the reduced weight on the feet.
My Berghaus boots weigh in at 1300gms the pair which I think is towards the lighter end of the scale for boots and the Merrell shoes are 680 gms the pair and I certainly noticed the difference.
I have just bought my first pair of walking shoes .. Merrell Moab Ventilators. For years now I have worn Berghaus Explorer boots with a goretex lining which I have found really suit me, however while walking the Cotswold Way last month I got a large blister under my big toe which extended under the ball of my foot.
I think this was caused by my feet sweating and the non breathability of the boot.
I have decided on the Ventilator shoes because they are reasonably light, non-waterproof so breathable. I have decided to wear them on the GR10 in August and September.
I wore them for the first time yesterday on a 13 mile walk and got damp feet from the wet grass after it rained with 3 miles still to go.
I found the last 1.5 miles in Bath very hard going. I was tired and the route went up very steep alleyways and side streets only to drop down again. There were no great views after the uphills so perhaps the route planners were just having a bit of fun.