Hiya mate,
Firstly my motor especially when it snows is used alot on country lanes, steep inclines / declines usually not gritted to any great extent.
Reason for removing the ABS fuse is that snow is a "deformable" so basically it will change its shape to surround your tyre.
With deformable surfaces, the car will actually stop faster if you lock the wheels and let the surface build up in front of the tyres. ABS prevents wheel lock which decreases the surface build-up and, therefore, increases the stopping distance on snow / sand / gravel etc
ABS really only helps you maintain stability (not stopping) by keeping the wheels rotating with the surface.... wheels carrying on rotating... steep decline country lane.... (you get the picture!!!) :doh
Obviously the main breaking in snow is using gears and not driving like a tw*t... but ABS is anti-lock braking... nowt to do with stopping better in the snow! :thumbs