Drags,
AJJ is right -- the sound you need to hear is 'Metalhead' Pearson saddling up to ride to the rescue.
BKLs, unfortunately, won't do anything for your windage problem; and the Burris insert/Signatures, unless they've changed them, aren't even close to describable as 'light weight'. (I milled mine to get their weight down and they're still hefty critters.)
If you are so out of alignment that your windage has actually affected your elevation travel (and if you're certain that it's not just your present mount system that's putting you there) you need more than a bandaid fix.
Get Marvin to solve your problem. He's not cute (I am known as a master of understatement!) but he has 'endearing' qualities! ;-)