The argument for not using ABS in snow is you can possibly stop faster if you allow the wheels to lock and build up a wedge of snow in front of the wheels. This would only really work in fresh, soft snow I'd have thought. On compacted snow and ice this theory doesn't work so I can't see any advantage in turning the ABS off. Do you think you can stop faster using cadence braking and also control the resulting skid ? Deliberately disabling the ABS means no VDC and possibly no electronic brake balance so you'll be swapping ends before you realise it.
my 156 is y2000 so none of that over-complicated gadgetry, just abs and windbags
As others above have said, adjust your driving to suit the conditions, makes a huge difference. I'm running on Conti ContactSport's, around a year old so good tread depth, had no issues on tuesday in the first of the snow, unlike many I saw attempting to "drive". It was just the same last winter, full revs, tyres spinning, cars twitching and sliding side to side, I wonder if they suddenly found grip if they'd even thought as far as where their car was going to be heading or if they would be able to stop it
The problem with a lot of the new safety systems is the false sense of security they give some drivers, and in snow/ice they'd not stop you swapping ends or stop quicker if you'd not driven with some thought in the first place. I don't have a major issue with ABS, works well if the tyres can get some grip, but in icy conditions it's pretty much ineffective and momentum overpowers its efforts. It'd be interesting to see how the 156 would fair without it, perhaps
Cadence braking on ice wouldn't achieve a lot other than lose even more control, you need grip for that to work and there's not much of that on ice, even less once you're sliding. Better to have been travelling slowly in the first place, take feet off the throttle, no brakes and guide the car as best as possible until you are able to stop it...