both rely on mostly natural snow. moonlight had some awesome jumps last year. 2 in the upper section of the park and 2 bigger ones at the bottom section. we had good snowfall last year, so hope for that again.
at big sky the main park under swifty does not have snowmaking either. they have some dirt rollers built so they don't need as much snow, but i liked moonlights jumps better. big skys were steep take offs and took a lot of tries to get the speed right to hit all 3, and sometimes it seemed you couldn't hit all 3 depending on the snow. but thats an opinion i guess
havent heard about moving the park back to ambush, they have some snowmaking there though.
hope they are both better this year though. moonlight has a natural park built off iron horse, cant wait to check that out!