I remember back to the time when it was common to refer to a cam as being 1/4 race, 1/2 race, 3/4 race, full race...no in betweens, it was either one or the other..LOL!, the term for stage 1 , 2 , or 3 etc, for porting seems to be the fashion at this time, though it sets a standard for a set price & the amount of work done, which as seen does vary from one shop to another.

There's so many variations in combinations I prefer to stay with the custom porting theme for doing work