If you want to reduce variance don't enter the tournament in the first place and play cash. Of course you don't want to reduce variance. You think winning $10 million dollars comes from making the low variance decisions?
This isn't a strategy forum but if someone raises and I have ~40 BBs then I'm not 3-betting for value with any hand I'm folding to a 4-bet. Kings are certainly the nuts here and remain so until you start approaching 100 BBs stack depths.