Eights On Pylons 

this is one of the best training videos. I am a commercial pilot and this is a good refreshment b-4 BFR

Yes, we use X-Plane. Its about as realistic as you can get without actually being in the cockpit. If you need to practice or brush up on your skills, X-Plane is great.

excellent

So basically its ok that the altitude will always change throughout the manuever?