Figure 1 calls for 3/8" from the side of the block to the center of the holes. But the block is only 1/2 wide and this would place the holes way to close to the edge. Besides that, the drawings all seem to show the holes centered on the block. I think the 3/8" specification on Figure 1 is wrong. This is from Revision 1 dated 8/24/09 which I think is the current drawing. I am going to center the holes. Anybody else notice this?