I am finding that at certain spots in my mesh, when I've applied subsurf modifier, I get these weirdly sharpened / extended edges on some joins, but not on others. See the photos for what I mean.
I've tried playing around with adding edges and loop cuts but that doesn't seem to fix the issue.
Here's another example of this, may be a different problem, but this was seems to actually be making creases of some sort.
Blend file is here: http://www.pasteall.org/blend/33247 Any help much appreciated, Thanks!