1X on Leupold QR bases and rings.
I've had both styles on my Omega, the Leupold QRW, which has the Picatinny style slot and clamp and the round post style QR. I prefer the round post because the release lever is smaller and rounded. The QRW style wore holes in my wool jackets because it stuck out and was kind of sharp. Now I have the QR low under my 3-9 Omega scope and the fit is pretty tight to the hammer so you might be better off going to the higher if you hunt with gloves a lot.
If you go to the slot type base, make sure to get steel because your ML will hammer the Weaver aluminum slots unless you really tighten the clamps hard -then you'll need a tool to get them off and defeated the purpose of quick release.