I'm from over on the landscape lighting side of lawnsite. quick question- has anyone here ever tried those 2 foot by 2 foot by 6 foot waste concrete blocks with the fake stone face you can get at concrete distribution places? they weigh aprox 2 tons each, and I was thinking of using them for a stub wall on a storage building. they seem to interlock like retaining wall blocks, but straight up instead of stepping back. I was looking for someone who has used these to tell me how they are to deal with.