Im looking for a new pair of freestyle ski boots and was looking for some input on boot performance. My old boots were the white Rossi Scratch 4 buckle boot and just need something with better freestyle technology. I've been looking around and am thinking about getting the SAS FS1 boots or the SPK Kaos. Im also considering the Fulltilt Booters as well as the Dalbello Kingston boots. Im an advanced skier who needs a good park boot that can handle the jibs and tweaks with a good flex but can also handle the powder days with rock drops. Any info will help, thanks.