[McAllister]

My conclusion (based on your quotes, not my paltry knowledge of setup attacks) is that you cannot generalize from feints to setup attacks. A feint applies to an entire turn's worth of attacks: attacks on the same turn, if any, and attacks on the following turn otherwise. Setup attacks apply to the next single attack, as long as it's on the same or following turn.

Yeah, I just went back and re-read Delayed Gratification. Quality article. If you want more than one attack to benefit from setup, use Stacked Setups. Which begs the question, if you can stack setups, why would you ever waste the bonus by using a follow-up attack? The rule where each subsequent setup gives a stacking +1 bonus to defend helps defray this, but if I can reliably take -4 and still hit, then I can slowly whittle away my opponent's defense with full-strength attacks. Not sure what to do about that.