I'm looking at purchasing some tires for my stock Disco II and was wanting to know if anyone has used or is using either the Yokohama Geolander AT Plus II or the Bridgestone Dueler A/T Revo. One of my main concerns is how they perform in the snow and slick conditions. I'm looking at the 245/70/16 size hoping that size will allow me to use my original spare. Will I have to get a spare in that size as well? 29.1" stock vs. 29.5" for 245/70's. If that won't work then I will go with the 245/75-16's. I looked into General's new Grabber AT2 in the stock size but it is on a national backorder until Sept. Thanks