Ok, so The handbrake lever is super free so the stickyness is internal somewhere.
Pumping the brakes and handbrake a few times gives me varied stickyness.
Some time when I'm not running off to work I need to check and see what the other side feels like. I mean, I can feel the brakes dragging but I can turn the hub by hand when I've got it as free as I can.
Maybe it could almost be a case of the handbrake is a bit too tight and is never coming off completely?
I'd really rather not spend the cash on an upgrade, so is it possible to refurb my mk2 ones?