I love this stuff
I will argue back at you, but just because I'm argumentative, and not because I necessarily think you're wrong. (but, PLEASE push back on me whenever you like. If I'm wrong, I'm wrong
SO...
2) The linemen downfield thing. This is actually exactly what has made RPO's so tough to deal with since whenver the rule changed (2012?) to allow offensive linemen to be 3 yards downfield when the ball is released. It's a horse**** rule, but it's the rule, and it makes it impossible for linebackers, because 1) They block it just like a run, because RPO's happen so quick that they're not more than 3 yards downfield anyhow, and 2) EVEN IF THEY ARE LIKE 8 YARDS DOWNFIELD, REFS NEVER CALL IT (again, this is my old-man "football has turned in to basketball because you're not allowed to play defense anymore" rant).
1) I disagree here, too, because the whole thing of some RPO is that you often decide pre-snap whether you're going to throw it or not. Essentially, if the defense doesn't line up "right" (3 men out there to deal with your 3 men) you just abort the handoff and throw the bubble. With that in mind, you actually want the handoff on the OPPOSITE side, so he's not in the way of the pass. You just check alignment, and if the defense doesn't set up right, it's an autocheck to the bubble.
Now, there are DIFFERENT types of RPO's, (generally where you get a slot running like a Snag/Stick route behind the playside linebacker so if he dives down to stop the run, the receiver just settles down right behind where he was and it's pitch and catch) (We describe them as "elbow" throws, becuase it's just like standing under the basket on the baseline and throwing a pass to the elbow of the key. It opens up RIGHT in the QB's field of vision while he's doing the handoff, so he can pull it and throw). That's a read that happens after the snap. This would be a pre-snap read.