I went down this road years ago after reading about the downsides thinking to myself "it can't be that bad." It is that bad. Even with a high mount, it is still not good. Eye relief, eye box, parallax, nothing working in your favor there. Even a versatile compromise optic like an LPVO (not knocking them, it's a fact of life) can only do so much. I love my LPVOs, but the ones on guns that I also use for NV shooting have a Holosun 509C ACSS on top for this reason and others. I've found that moving the LPVO as far forward as is comfortably possible and putting it in a RELATIVELY low mount makes for a great mounting height for the MRD on top. YMMV, good luck.