I prefer KM for liquidation because it takes off one step making it more profitable. The cashier allowed six MOs done in separate transactions. I had 'trained special helpers' to help me drain several 5Bs.
Only drawback is lower face value MOs than what I'm used to but it's a minor issue. I'm just glad the one I found took DC as payment for MO. The CBs also posted 48 hrs after purchase.