I learned to spin a full scale Cub by accident. My instructor had me in a steep climbing turn stall. When it stalled, I gave it opposite rudder, I thought. But I gave it rudder to promote the spin. I'm not an expert in RC, but have been able to make my planes spin by putting them into the same climbing turn stall, and holding full aileron and rudder. They spin. Every plane I've had recovered when the controls were neutralized. Maybe someone more expert can comment on the besttechniques. I'd like to know the procedure for inverted spins.