Question for those with Compomotive wheels

[Kaaae]

I think i have settled on 285/60 Toyo Open Country AT2's. Once I get them in, i will determine if the standard spare location is ok or if I will get a rear tire mount.

 

[Trekker]

I think i have settled on 285/60 Toyo Open Country AT2's. Once I get them in, i will determine if the standard spare location is ok or if I will get a rear tire mount.

I'm thinking about this size/tire combination as well with the 18" Compomotives. Does anyone have experience with this tire in snow and ice?