Great reply!
My J-31 riding experience was from St. Louis, MO, first under TWA paint jobs (probably run by Trans States), and later under AA paint jobs, and eventually run by Corporate Airlines (later renamed to Regionsair).
Most of this was under that "essential air service" program where they would fly from smaller cities in a roughly 100-mile radius of STL. The free parking was nice and very conveinient. Connection times tended to suck 2 to 4 hour layovers, to where you could have driven, but then again, $ wise, you were ahead somewhat.
I have a few good stories. A few times, I watched the PNF tap the altimiter on climb out and then a brief, light feeling as we descended back to the assigned altitude we just flew through.
One night it was hard IMC (mabye 300 ft, moderate rain and fog). The ADF and "VOR/GS" was visible and the approach had an LOM. By the swing of the ADF and LOC, I could see that we were vectored to intercept a little bit INSIDE the marker.
I then freaked as we descended to 400 ft AGL with the gear up, and then went around. I then realized that the pilots probably decided early on that they were not landing on that approach, and left the gear up, and if they did happen to break out high enough, they could lower the gear and land...?? Pure speculation on my part, but.....
I was very impressed one day - we were flying North to STL....I notice 180 on the DG....Huh....a few min later 360. Damn, these guys are holding and I'm not even feeling the turns!
Twice I got to wear a head set (wow, glad to know I'm cute). Actually I got to tell them I had a private ticket- and then they played the CRM game that I could inform them if I saw something. One time they forgot to change center frequencies.
Of course, sometimes, they would keep row 1 empty, claiming W & B. I don't know because there were some crazy light loads where I was allowed in row 1...how do you get forward CG with a moderate load, and an aft CG with light or full load.
One time they lost a vortex generator tab off the top of the wing and the flight was delayed 4 hours while they fixed it. Another time a prop reverse sensor went out, the pilots were allowed to fly back empty (to STL) but not allowed to haul us.
Here's a good one, pull up a map of STL. One time, we landed on Runway 6 and turned off before runway 12R/30L. (Yes, heavy reverse and braking).
Sad, that all I can do is report on little mistakes, of course, that's easy to do from Seat 1B where I have no responsibilities. I really cannot fault the pilots- they all seemed competent.
Now, I HATED the aircraft. It yawed constantly! (These planes had the luggage pod underneath and one pilot told me that the wing had a lot of dihedral that also caused that yaw.) It was also good and noisy....I do recall an instance of ice slapping the fuselage. Another pilot mentioned that the J31 shared the landing gear of some fighter and that the J-31 was certified for carrier operations.
Corporate had a crash- a sad one, after a tough, 14-hour, hard-IMC day, the crew was on a VOR DME approach and the CVR said "airport in sight" (they may very well have seen it), but it was night and IMC, little civilization on the approach (i.e. lights) and no GPWS and there's that night-black-hole-effect and they did CFITrees about a mile short of the runway.
I think, I had the pilot on that flight on one of my flights

. It was a guy named "Kim" and that's a slightly unique name for a guy.
Cape Airways is provding the service now in Piston Cessna 402s. But I have since moved to STL.