Time Trial / Time Trialling / TT

^^ practice > theory
Isn't a bag easier than pockets though?
Hadn't thought about armrest chafe, but that makes sense: saddle/bib/bum vs. saddle/bum.
However, I'd guess that temp. regulation and overall quality are related.

I use one of those bento box behind-the-stem things in training but it interferes with my knees so I prefer not to use one. With a support team during races I don't need to carry as much as during training rides so the pockets in the skinsuit are much more useful.