Hallscreek - thank you for sharing this outstanding review. I actually joined this forum just to respond to this thread in that I'm considering a 2014 PA14. I own a OK Trident 13' and absolutely love it, but thinking of upgrading nonetheless.
I do wish they had the better seating or at least seating as good as the new Jackson Big Rig for the PA14, or like you said the PA12 seating. My only semi-holdback/concern at the moment is the Hobie tuckaway rudder, found a few reviews of Hobie veterans stating it was just a poor designed rudder. I would likely have to upgrade after being spoiled to my Tridents custom rudder if I procure a PA14. I built my own custom rudder that looks near identical to the ACK version but much better in terms of strength, weight and materials vs the synthetic version. So I'm confident I could at least mount an aftermarket or build my own on a PA14.
Being a technical guy, I really like the benchmark you did, while non-scientific as you put it, I've yet to find anyone else GPS benchmark both models, so kudos to you sir. I'm leaning toward the 14 vs 12 overall, I guess the weight isn't that big a deal with the dolly. Not interested in trailering it, like my extend a truck setup. Big difference between 120 lbs vs 75 lbs, but imagine it's manageable.