As many of you know I am the new owner of Shred's X5.
After talking to Bruce, I know it is a Monster 188, 15/16m sidecut, no topsheet with a "lightweight" core. It is 1 lb lighter than the stock monster. The lack of topsheet and the light core are the only differences.
I will say this first. IT ROCKS!
It is a VERY easy board to ride, with a decambered nose and tail it doesn't feel like a 188 at all, very easy to move around. I was a little hesitant about the sidecut, but it doesn't seem to matter. If you want to ride it tight, just do it. Let it run and it is SUPER stable. The only time I got it to complain a little is when I carved down a rutted up ski course after they pulled the gates, and even then it hardly balked.
I have only ridden it in soft, slow snow and soft snow with a hard base. I am hoping to get it out on some ice before the end of the season to see what it does.
One thing I can't say anything about is the width. It is a 23cm waist, I like wide boards. I run my bindings at 57/54 with a 30 boot with NO boot out, there is still room for lowering the angle to play a little. It does not seem slow from edge to edge, but I am rather used to wide boards so I can't really say. I can say it doesn't feel any slower than my old Donek FCII with a 19.5 waist, and does feel faster than my Axxess with a 22.5.
This board is a serious quiver killer.
I will update this as I go.