GFS also uses this method for teaching spin recovery. It seems to work well enough, as with full opposite rudder rotation can be stopped in 90 degrees, after first entering a spin and maintaining it for two and a half rotations. Then apply a bit of forward pressure and you're good. It's certainly a bit quicker to recover if you get some forward pressure in there before the rotation has stopped, but it if works for you and you're comfortable with it then you may as well do it.