No problem at all, dude. feel free to ask whatever you'd like. more than happy to help a fellow skier/water skier out.
yes, the transition from water to snow and back will mess with you a little bit. the main thing that screws with me is that you land down hill when hitting snow ski jumps, so your tips are facing down and your weight is more over the front of your skis. landings from water ski jumps are on to a flat surface, so you don't want to be out the front and you don't want your tips facing down. really though, it's not a huge deal. it only takes a couple of jumps to get back in the feel of things.
landing from really high isn't really any different than it is on snow....except for the whole landing to flat part. i'd say the stereo skis would make for a better, more solid landing because they're flat underfoot where as the HO skis are shaped kind of like a banana - there's not any flat spot to break the tip and tail rockers. plus they're a little longer so there's more ski to land on.
the opposing side of the longer ski though is that it's that much more ski to try and flip or spin on wake tricks. depending on whether or not you've got access to a jump, or will be strictly hitting wakes would be another thing to consider when determining which skis are right for you.
they're both easy to edge on. they have fins in the tips and tails, so cutting on them isn't really all that different than it is on skis or on a wakeboard.
check out ebay for a set of used sticks. i picked up a brand new pair of HO wakeskis with HO Shock high wrap slalom bindings for about $300. just keep your eyes open and you'll probably come across a good deal there.
good luck, man. they're lots of fun...especially if you've got the boat and the balls to get dirty on them. if you've got any other questions, don't hesitate to ask.