come on sallies, we all drive cages from time to time, snowstorms up here have been hard to drive my 2 wheel mexican work truck with meats on the back but its what you have to do.
to the guy recommending the winter tires that are slightly different, have you used that size on the spyder and had the tcs not fault out? mine did with a bigger tire so I want to make sure. I have road this thing in the winter and have kicked around several ideas on here but until someone has done it then its just an idea.
If the tcs would not trip I would try the tires listed, got the time and environment to do it in. IF anyone wanted to send me a rear I would throw it on and put your name on it in grease pen.

Rule of thumb = Wide tires for mud/sand.
Narrow tires = snow/slush/ice.
Wide tires will float,
Narrow tires will dig down to the pavement and grip.