Michelin XL and XML...how do they flex? Can the D60 take\'em? I thought about putting a set of these on the Toy. Brand new, they're cheaper than a set of 44" Boggers, so I can't lose in that race. But how well would they flex under a light truck? Sure, Petersen's Super Duty can flex them well because, well, it's a Super Duty. In the XL's, I was thinking of a 12.5 R20 which measures a little more than 40" tall, but for the XML I was considering the 395/85/20, which is 46" tall. Will the D60 front hold up to them?