Replying to NO INVERTS

So, my home mountain's park is pretty good. right now we have a nice set up with 6 rails and a 20 foot table. the only thing is, i really wanna progress this year, like flips and stuff, but there are no inverts at my mountain. and dont say "just dont get caught by ski pattrol" cause thats hard to do because they can see from two lifts and the park crew cracks down hard. anyways, i was wondering what i can try to do to progress. i can 7 blunt/mute (claim) and i wanna learn corks. so any tips for not making them inverted the first time, cause when i first tried them they were inverted.