Have only sank pallets 1 time, 2 on top standing upon the 3rd (base), wired 10 10- hole bricks on open edges, holes horizontal. Stuffed top and bottom with mulberry limbs and light steel cabled a cement block to each corner. Sank the "beast" in 20 fow, 30` offshore, had to drag the #$%@ along the bottom with a rowboat, finally, it snagged and had to leave it there, a really miserable event looking back; that thing was my first ever....MAN, did that badboy EVER produce green carp and some BIG crappies! Unfortunately, it worked SO well that more than half the times went to fish it, some boater was already in the process of stripping it of every fish off of it. Learned the value of placement enmass...they can`t fish them ALL at once...