I gave up last time I cycled into Birmingham, after a couple of minutes sitting at the Holyhead roundabout at the end of the Bristol Road. So much easier and safer to cross at the crossing and wizz down the pavement a little way until it was safe to get back on.
Quicker too, a guy I passed a few minutes before was already crossing the ped lights having nipped onto the pavement earlier.
I feel uncomfortable with it generally, but then my wife cycles to work occassionally, and does it ll on the pavement, preferring it to the road. I prefer it for her to.
Steve