CarolynMT....I seem to always get some "wonkiness" before I'm finished, too....no matter how hard I try to get it all just right!! And, I do my borders the "correct way" too.....measuring, etc. So, I'm looking forward to keeping it straight myself, as you said. When I took the pictures, I did not have my 3 magnets on the quilt top yet....on the "belly bar." Those will definitely not let the quilt move.
Even though I've been quilting on my HQ16 for 3 plus years, I still am not comfortable basting my quilt at the top and sides. So, by floating the top, it saves all that pinning on the quilt top bottom, and I can pin both the quilt top top and batting at the same time. Just eliminates some of the pinning for me. I will start tomorrow. I'll try to show pictures after I'm finished.