Building a 1000/1500 Ox, and today was attaching the 1000mm 2060 Y crossmembers to the Blue Ox plates I ordered, and discovered that the V-Slot for the OpenBuilds Part Store is not cut square on the end. When I tightened the bolts down on the side plates they wind up hopelessly out of square with the cross members. Has anyone else had this problem? Is there a solution short of asking for replacements? Obviously, I could cut these down myself to square, but then I wind up with a smaller bed, which is not what I wanted. In the photo attached you can see the V-Slot and side plate from above - notice how the outside edges of the v-slot is about 1.5mm of the side plate while the inside edges are tight against it. If I reverse this so that the "gap" is on the inside for both rails, and tighten slowly, perhaps they will stay square? They seem to be off equally, cut on the same machine not properly set up. Thoughts?