yeah idk about the silvas specs or how they ride because they are new, but the madens are k2's big ski, and I believe they are stiffer than vicious, and maybe a little softer then PE's, but not considered soft.
silvas are very similar to the madiens demensoin wise and they are both suppose to be softer pow skis and the silva is cheaper and its ninthward so i would get those. plus you cant beat the graphic