I think to fully appreciate or reap the full benefits of a high-frequency program you would have to change your outlook, Desi.
It may just be my personal style of doing it, but I don't train bodyparts, particularly something as tertiary as a deltoid. Rather, I train movements, "archetypes" of movements and, essentially, the body as an integrated whole.
I may have certain days on which my quads and/or hammies get more or less work, but my whole body gets hit each time in the gym. Even if I'm not squatting, my legs are still getting worked with cleans.
Take your "how many sets for deltoids" as an example. My guess is you're thinking, "well, I've got to do some presses for the anterior and medial heads. Then I've got to do a few raises for, again, the medial head. When finished with those I couldn't possbily neglect my posterior deltoids so I'll do some bent over lateral raises."
I look at it like this: I've got overhead and/or push presses in 2 times a week. I've got bench press in 2X/wk. Rows, chins, deads. Static holding/contracting of the deltoids even during squats. As such, I've covered all 3 areas of the deltoid (front: presses, middle: presses, rear: rows, chins, deads) on 4 or 5 days. So, in essence, my delts are getting worked every time I'm in the gym. However, unlike traditional programs in which this is also, technically, the case, I don't have a day in which I hammer the shit out of them which prevents overtraining. And there you have the basic outline of an effective high-frequency routine.