On the rifle in question, I'm still using the Bushy 1/2" riser blocks that came with the rifle. I don't mind them for "hunting grade" work.

I'm just hoping to find a set of rings that will reliably come back to the same zero. I've even just thought of using normal tip off rings and a torque wrench, and simply seating the rings forward against the rail grooves for consistency, but I'd prefer something I don't need a tool to replace...Not really "quick detach" if it requires a tool.