Here's the article I read years ago, wasn't hard to find.
http://setitupbetter.com/Compensating-The-Nut.php
He's since added to the website. The option to buy an uncut shelved nut is great. Then you shave it back until you get to the right point. Having to cut all the slots requires an investment in tools. Also some trial and error. Additionally he talks about many compensation versions that are out there in detail.