 your load carrying capacity at some lower inflation pressures. IF tires allow 20% more load carrying capacity at the same inflation pressure versus a VF is 40% more. Another thing to consider then would really be your tread design. Generally speaking for like a tractor type drive tire, there's R1 tires, R1W tires, and R2 tires. I think you just kind of need to evaluate like what performance are you really looking for out of your tires.