Several people, who seem to know what they are talking about, have told me to never go below the 111 load index. One guy from Michelin did say that 109 would probably be okay. Another guy said that Nissan's load index is a little bit of overkill, but should still be strictly adhered to for safety reasons. So, I guess I am going with the stock superwide 265s, to keep it safe. You may see me in the ditch this winter. This really sucks that we can't change tire sizes.