Although this is a fairly old topic, maybe someone could point me to a workaround for my problem, caused by the same issue, described in this topic...
When flying f.e. EHAM -> EGGW I suffer stress crashes because of sudden wind changes at high altitudes. Cruising my Embraer at FL260 at around 300kts the wind changes suddenly, gearing me up to a bit less than 360 sometimes up to almost 400kts, depending on the weather situation. Of course this is a major overspeed situation, causing my aircraft to crash. In FSX I tried to disable the "aircraft stress causes damage"-option, but probably FSPassenger keeps this setting alive and kicking... I was hoping anyone, maybe Pete via his FSUIPC is able to figure out how we might be able to at least make the differences between 2 wind situations smaller, to keep our aircraft flying, instead of crashing...
Btw, real world weather in my case is regulated via REX.