All I can tell you is that having tried that chart, then checking the lash more places, I found some of the lash were off. I check about every 15 to 30 degrees for 1440 degrees. Probably only a couple thousandths off, it all depends on how picky you are. I literally found some of those Direct Connection decals and gave them away here. Having seen lobe masters, I'll continue to set lash hot and running after cold set for initial startup. After initial run in and lash, I only have to check the lash every 100,000 miles. These are not race engines.