Likewise, when popping stumps going in reverse, the locking pins for the rear "tailgate" blade are a non issue, since you will be applying all the force against the stops anyways. The only advantage of having the locking pins, is when you want to extend your top link, lifting the front of the box blade, and lowering the rear, and use the fixed tailgate to help smoothly spread, and slightly compact the soil being spread. Without the rear tailgate locked, you really can't do this, as it will just hinge upward and all you'll have is the weight of the hinged tailgate itself to apply pressure.