Great advice from Bumblesteeze
If you want a ski that is good for any size jumps and going fast then get the AR7's - I love mine, great durability very pleased with them they're also good on rails and I have no problems with swaps and stuff on them.
If you want a ski that is good for rails, doing butters and small/medium jumps then go for the Domain's.
Also detune your edges, this will make your edge less likely to crack and come out if you hit rails/boxes.
I like to ski with loose underpants or boxers on so my balls can swish around and chill.