Do it Cabs way and you are fine but....These modern crazy lobed over scienced grinds are not done like the old days--they can be downright odd as to where the actual low spot is. Do a modern roller grind by the Cab method,,,keep turning , keep turning and all of a sudden you are way loose! Well..question is..set it there or just call that the "runway" for valve opening? Do two engines a day for as long as I have and you start thinking cam grinders are nuts.
After all is said and done any engine set by the method that Cab explains so well will be FINE. These days with aluminum heads and rockers of all types, crazy grinds etc I like to set valves hot and the not care the least about where they are cold ( because it will be different) and guessing which way and how much thay move is well...a moving target.