Easiest way to raise comb height on low shooting shotgun - Beartooth Products Brown Comb Raising Kit 2.0 W/no Loops

My Remington 11-87 20 gauge shotgun was shooting about a foot low at 30 yds. I ordered this Beartooth comb raising kit to see if it would help. It corrected the problem. It comes with several foam inserts of different thickness. This raises your cheek off the stock a little, causing you to look "over" the rib and moves the pattern higher. I used the thinnest foam insert and it raised the pattern about halfway to where I wanted it. I used the next thickest insert and it centered my pattern exactly where I wanted it. I oedered the brown color model and it looks really good on the gun, matching the wood color. I have a 12 gauge 11-87 that also shoots low. Will be ordering one for it, too.