This is my first year trappin and I just started using cover hulls myself.
I'm digging out the bed and tossing the dirt away from the set, then I use my hammer and beat the bed nice and flat, then I'm putting the trap in the bed i'm covering the pan with screen and then I pour in the hulls untill they are about level and smooth them off with the back of my hand, then I put a light coat of no-freeze dirt over the top to keep the hulls from blowing away and then blend it in.
I dig the bed out just big enough for the trap, they are not rock solid but its working. :twisted: