Most snap stalls to crash happen because you try to pull elevator to recover when all you are really doing is pulling it even harder into the spin.

The best way to recover from a snap is to relieve elevator pressure instead of adding back elevator pressure. The rudder is the most effective input and the most effective tool in a spin which is in the opposite direction of the spin, but only after you have relieved the elevator. Letting go of the controls is not going to always help either, however it's better then pulling back on the elevator. The whole idea is to stop the spin then recover.

Many of times was I on the field and seen someone bury a plane because they spun into the ground. I walk up and ask them how they tried to recover and they said "i was pulling on the elevator as hard as I could and it would not come out".

The BEST plane to practice this is the new Corsair for AFP. This is the first plane that I ever flown both RC and Sim that you actually have to work it out of a true stall to spin. It's GREAT to practice for any airplane. I personally think the best flying plane I ever had my hands on the field or on the sim.