Thanks for the review Kami... mine is on its way, hopefully I get it before the weekend.
Should've pointed out that I'm used to colder temps and have more insulation than many people
so while I'm warm at 12˚C, others might be suffering - I know the locals are still in dry suits...
I kited all through winter, as air temp hovered around 0˚C and it was even snowing some sessions - used my 6/5/4 Hyperflex Amp3 and 5mm NPX boots'n'gloves... and was impervious to the weather, totally comfy. Got way too hot when temps climbed, although my 3/2 was too cold. The Switch fills the gap perfectly.
No woriries, I'm not buying this for drysuit weather. The amp 3 4/3 has served me well, but after a few years its time for a change