Firstly thanks to @thebikechain - I collected my pair of Marathon Winters on Friday and fitted them last night to the Boardman hardtail. And, am I glad.
The canal path this morning was slush progressing to ice the further west I went.
In Wester Hailes, the chap behind me slid and went down heavily at an under-bridge bend. He said he'd already been knocked off his bike earlier, at Tollcross, so he wasn't having the best day. He now thought he had broken his wrist. I suggested he lock his bike up and get a taxi but he said he had an exam to get to, and pedalled off, one-handed! Top marks for perseverance...maybe not so much for common sense. Hope he made it.
The new tarmac from Edinburgh Park platform down to the underpass was highly treacherous with lots of choppy slush. 3 cyclists walking gingerly down the side. The Schwalbes also seem great in that sort of stuff, if the pace is sensible.