I'm a long time AWSA member, have skied many different formats and have also skied one INT tournament. Can't really say that any of them felt different. Most tournament don't have enough skiers per division already and all you're doing is competing with yourself and getting a score for the Rankings List. I actually had more interest in attending Reg/Nationals when we had to get 2 EP Ratings and didn't know where you were seeded until you showed up and saw the starting list.
In this new era of shorter attention spans and busier schedules is more skiers the objective? If we add more rounds to Reg/Nationals, results should normalize and end up just where I was ranked on the list to begin with.
I do agree with @klindy I'm not sure what problem this is trying to solve.