Hi Jan,
All four of the portovers I've shown so-far fly really well in MSFS, and that is using the "Modern" flight model setting not the "Legacy" setting. The Stearman is a little squirrely on takeoff and demands rudder control with your toes - it does not do well with crosswinds. It lands really well - I recommend 3-pointing it. All of the gauges work. Like any other portover, the switches in the cockpit don't function when you click on them, but they do animate if you use the keyboard commands (such as for electrical power, lights, fuel on/off, etc.). The magneto switch however doesn't animate at all, as I believe its animation was assigned a unique code. I have always loved the 3d visual model and the flight dynamics of the Vertigo Studios Stearman, but I have never liked the sounds, so I will try locating the replacement sounds I had been using with it in FSX/P3D. I'm also going to experiment with the textures that I released for it - somewhat oddly, the areas of the textures that are supposed to be least glossy have a gloss finish in MSFS, and the areas within the textures that were intended to be highly glossy are flat, so maybe an inverse of the alpha channels will reverse that, we'll see. I have yet to try Nigel's Avro Tutor, but I will be doing so later today.
Here are some screenshots flying the George Bush N2S Stearman, one of five known to survive today that were flown by George Bush Sr. during his primary training at NAS Minneapolis in January and February 1943 - open cockpit flying in the middle of a Minnesota winter. NAS Minneapolis was made-up of what is today modern-day KMSP Minneapolis/St. Paul Intl. ("A" Base) and modern-day KSGS Fleming Field ("B" Base), with a number of other outlying dirt field practice strips that no longer exist. This Stearman was restored by AirCorps Aviation to exact specifications as to how it looked when flown by Bush in February 1943 for owner Paul Ehlen, and it is displayed at the Wings of the North Museum at the Flying Cloud Airport in Eden Prairie, Minnesota. When I visited AirCorps Aviation a few years ago, this Stearman was back for its annual, so I was able to take many photos of it, including photos of each of the many stencils and other markings, such as on the propeller blades, which I was able to copy/reproduce all around the airframe.