The problem with the stock G2 planes is the CG is to far forward to flat spin properly. You can download some custom planes from http://www.realflight.com/swap that will spin anyway you want to. One thing you need to keep in mind... After you enter the spin add a few clicks of power... If you don't it can be very hard to get out of the spin! Also practice all spins from a very high altitude. I find one of the easiest spins for me to get into and get out of is a knife edge flat spin… Try this get very high flying level at about ½ power… Then cut power and add full down elevator, full left rudder and aileron. The plane will do an inverted snap and then fall into a KE spin, hold these inputs for about three rotations add a few clicks of power then when you are ready neutralize the controls and recover. A cool twist to this is to cross the ailerons to the right and then move them back to center slowly and enter an inverted flat spin. Remember a when in a KE spin the plane will fall very fast so have plenty of altitude to play with!

Good Luck!