RE: How much wind is too much?
The more wind the better for me. The wind makes aerobatics more fun, landings more fun ( spot landings with almost 0 rollout are cool ) and just general flying more fun. There are guys at tmy old club that wouldn't fly if you blew in there general direction and they felt it. I have always taught my students to like the wind. I say, if your scared to fly in the wind, then you're scared to fly.
Sean