At 08:47 AM 2/14/2015, you wrote: >So, if we use 70 mph low over the numbers to minimize ground role, >brakes on touchdown, get big tires for traction,
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ I don't think you need bigger tires for traction but for the better brakes. I went with the 500X5's over the original 600X6's low profile tires to get a wheel pant that covered the entire wheel and brake assembly that was proportional in size to the KR. I'm using the RV pressure recovery pant. If you're needing the extra braking power of the 600X6's you're flying too close to the edge. Larry Flesner