Soooo, this was bothering me too the other day, wanted to slide couldn't had to resort to the hand brake.
However I did some digging according to the Forester people the VDC can be killed by removing the abs fuse in the fuse box.
I looked at our fuse box under the hood looks almost Identical to the forester fuse box. May try removing it over the weekend and see what happens, seems to be the same fuse and everything.
Also I have a 5spd so may be different for cvt