I have quite a few cord wrapped knives, where I consider the cord pretty much permanent although I don't use any glue.
My Bad Warden Necker has the same cord wrap that I put on it over a year ago and it's still just as tight. I'm thinking about redoing it eventually in a different color, so once I get it loose, it will be very easy to change out.
There was a thread a while back showing some links for knotting tips, gunna have to look for it though... <img src="/ubbthreads/images/graemlins/wink.gif" alt="" />
I personally wouldn't use glue of any kind unless I absolutely had too, paracord is just too handy. <img src="/ubbthreads/images/graemlins/smile.gif" alt="" />