Nice, but has design issues - Meprolight MMX3 3x18mm Micro Magnifier w/ Quick Flip, QD Picatinny

I have a Meprolight M21 on one of my flattops. I wanted to add a 3x magnifier, so I purchased the MMX3 (brand consistency). It's a nice unit, but it has some quirks that are a bit annoying. First, with the M21 mounted as far forward on the pic rail as it will go, the flattop is one slot too short to mount the MMX3. This is because the magnifier is mounted too far forward on the QD mount (design issue). So, I installed 1/2" tall an extended riser to obtain enough slots to pair these unit on the flattop. But wait, the MMX3 mount won't attach to a 1/2" tall riser because of the depth of the mount below the top of the pic rail. I ended up using a 3/4" riser to get it to clear. I tried a Holosun magnifier that I use on a different flattop, and it fit perfectly behind the M21 mounted when directly to the flattop (no riser or extension). Meprolight, you got some work to do.