Learnt something new

We really do get a better group, though: https://www.nature.com/news/science-gets-a-grip-on-wrinkly-fingers-1.12175

This was proposed by a Chinese scientist in 2013 but they failed to prove any consistent results. In fact there was no real difference in grip between wrinkled and non-wrinkled as was found in later studies.
http://www.sciencemag.org/news/2014/01/scienceshot-wrinkly-fingers-may-not-give-you-better-grip
https://io9.gizmodo.com/nope-pruny-fingers-and-toes-dont-give-you-a-better-g-1498866921

I checked out your links and it looks like you're right. There is no apparent grip advantage with pruny fingers in those new studies. I love science! Thanks for setting me straight, lucky.