20 MPH is a hefty smack. When the wind gets serious and gets your attention, that's 20 MPH. 20 is my max, but I like flying in the wind. I use weather bug all the time. There are a lot of stations in my area and it's a great way to see what's going on. Here in the Pacific Northwest April through mid summer the wind comes up like clockwork every afternoon, usually 5 - 10 MPH.

I only fly sport planes in the wind. My favorite two planes for the wind are my SPAD Coyote and MUS. They wind can get ya. I lost a little 3D airplane when the wind threw it into the ground a couple years ago and destroyed it. Flying a Cub in the wind can be like it's a yo-yo violently yanked up and down. Sticks are the best in the wind in my experience, they don't get buffeted up and down as much as other designs.