Two things about a tag that I feel are "must haves". First is liftable as it shortens your turning radius and the second is it should be driver adjustable. This means you, as a driver should be able to adjust the amount of pressure placed on the tag at any given time. This allows you to adjust the axle weights on your coach. Heavier the tag the heavier the steer axle, lighter the tag, the heavier the drive axle. Important when weighing your coach and adjusting the handling of it.....Dennis