Dont do that shit man, air alert and leg curls= minimum gains, do something thats proven to work like VJB, and if you really want to get the best gains, i think that
VertFreak101 - Welcome to VertFreak101 is the way to go, customized programs according to your needs are great

. Aside from that you definetly want to get squats and deadlifts (big compound lifts) for strength because that will get you great gains, but srzl dont do AA4 you will injure yourself eventually and the gains will be minimum it doesnt make sense training endurance for such an explosive movement as a vertical jump.