43 year old advanced skier, mostly east coast with Utah & Banff trips each year. 6', 220. I'm pretty aggressive most of the time. Enjoy most conditions except for hard bumps and tight trees. I've had a variety of skis the past 10 years. Favorites have included Nordica Top Fuel, Head Monster, Head XRC 1400, Elan 888, Sultan 85.
Longtime lurker on this site...love the reviews, tips etc. I purchased two Kastles this past year and wanted to post some non-technical impressions.
Kastle MX88, 178cm: Took these out for a demo last year on an empty day at Statton, VT. Purchased a pair the same day. I had read the reviews but really didn't think these could be that much better/different than other quality gear. Wow, was I wrong. These are fun, exciting, etc... all the other positives that have been mentioned apply. The thing that surprised me the most was the total control I had when skiing very aggressively. I took them out west last Spring (not much fresh snow) and used them a few times this season here in the east, and they make average conditions lots of fun. The fun factor is hard to put into words...these are just a blast to ride and are the best skis I've ever been on.
RX SL, 166cm: I've never owned a pair of slalom skis and wanted a ski for day trips to the Catskills. Got these relatively cheap (skis, plate, bindings for around $675) from STP. I probably would have gone with the a narrower MX or RX 12 if I could have found a deal. These are more work for me than the MX88s. I'm not a former racer and really don't know how to get the most out of these...I have the feeling I'm skiing them like the all-mountain skis I'm used to. Right now they are sort of like a novelty in my quiver...they are different and fun to make short turns on, but I need to learn how to really ski them. I'm still on the original factory edge bevels (1,2) and will change it to a 1,3 soon.