I echo the notion of getting a proper winter bike for the job of winter bike.
I rode with Crud MKII's last winter and they do the job but can get annoying and fiddly with any knock or when you eventually suck up so many leaves and road detritus it sounds like you're riding a kiddies motorbike.
Get a proper Winter friendly bike with guards fitted, a wider rubber footprint, if it's heavier than your summer bike, so be it. You''l fly like a bullet come spring when you can get your summer bike out and certainly enjoy it a lot more.
I wouldn't subject my bike to another winter's riding duties (only had one bike last year so had no choice) and will be using a dirt cheap single speed to log miles this winter as last winter was a nightmare of constantly having to clean it and degunge all the gearing and such after each ride. That and the wear and tear on a half decent bikes components really starts to rack up the worse the conditions get.