I have the Loyal drag harrow 8'x 8'. You can pull it with the spikes up for a smoothing effect and in spikes down for two degrees of aggressiveness, depending which direction you pull it. Works good for taking out ruts in dirt roads and smoothing out gravel. It does follow the basic contour so a misshaped road will still be misshaped, just smoother! And picking up trash can be a good thing.
It also takes a little room to turn it around so keep that in mind if you have roads that dead end. And lastly it can be a bear to store, I lift mine with the FEL and lower it to create a "pile". Laying flat with the spikes up will make you cringe, especially around a public campground. Spikes down is better but made me nervous with the dog, because it creates 100's of little circles that he could break a leg in. Laying flat it takes about 10 days and the grass will completely hide it, so be careful.
It's great for fitting a field for planting, good for maintaining the dirt road sections and OK for grooming a properly graded gravel road.
