Went on an estimate today for a guy who wants a gardening wall, 2 bricks high with wedgestone from nava. He said he doesnt want the gaps in the back like other bricks. Ive never worked with the wedgestone before, and to my understanding they are 6-9 and two faced to lay them either way. The problem i have is that he needs a couple 90 deg turns made, which can be done with no gaps. If anybody knows about these, they know about the parallel groves on the bottom. How have i going to make those turns and interlock the grooves since they are going to be staggered?? Any help or comments would be great, im kinda stuck in a bind!!