um... why would people not like salting the landings? As long as they are raked every so often i don't think anyone will have a major issue. I'm not trying to be a richard, but seriously, what is wrong with salting them? I do not know much about how it works but I can definitely say I have seen it at other resorts, with no complaints.
As far as getting landed on, I totally agree with you. but just close down the jump with a sled or a few boards/rakes in the way. I could be wrong, but how hard would it be to get a big orange sign on a probe that says "feature closed"?
By the way, the Grand Prix set up on broadway looks unbelievable!!!!!! The 2 section stair case and then the feature - gap, holy hell you guys are nuts for even dreaming that! Nice work!