I always plan my flights on infinte flight but on most of my flights the aircraft starts shaking at around FL290 or above. Some times wind increases up to 125KTs. Any ideas where I can choose good flight plans whith good weather and of course low wing gusts?
A good source is windy.com which shows live wind data at different altitudes to help you plan for ideal wind scenarios - a tailwind usually helps you reach your destination
For planning real flights, a combination of simbrief.com and flptoif.com are handy sources I use. Simbrief provides real word flight plans complete with realistic approaches, descent/climb profiles and fuel required. flptoif helps convert the generated flight plan to be compatible with Infinite Flight.