Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
Which ones would not be essential in your opinion if I may humbly inquire?
An expert can still have a tremendous amount left to learn -- in fact, an expert may be more acutely aware of that than anyone else.
I would argue. In other words, you dont just catch fish, you catch fish for a reason and especially if you catch 'em consistently!