Reason to be careful

The simple fact is winter riding is risky.
Sometimes too much so when it can impact a training plan.

 The best advice I can give is just be so much more viigilant. 
Black ice was the culprit. I thought it was a flat back tyre until I hit the tarmac hard. Nearly a week later and it is only just starting to heal and I consider my self with getting away with it as I could have chipped the bone very easily.
An injury like that would really have put all that training into the skip.
Luckily I have been able to maintain a training load.