Nice shoes! They're really what I'm looking for next... But my shoe change will involve a cleat/pedal change too so need to make sure my SPD's are well worn first. I may leave it until next year (after winter) as can't remember if the Arctic GTX boots I ordered have SPD and SPD-SL or just SPD... (don't get them until my birthday).
That RT Di2 is an insane buy and you're right about their designs getting better!
I've been wearing
these mesh ones for really hot/climbing/tempo rides, I'll be getting more when they're in a sale. Really wide mesh, plenty of stretch to remove - even when soaked! Very impressed, they size up ok. I'm wearing XL's and I'm usually an XL in most jerseys (L in DHB).
I wear
these for other rides/commuting. They're great (amazing wicking) but don't have the stretch of the others. They seem to be wearing more (stitching coming slightly undone etc) but then again they were half the price...
I sweat buckets (always have) so my jerseys get soaked on hard rides, with a mesh base I find things far more comfortable on longer hard rides. The extra 'evaporation & mesh' principle really does work.