Thanks for the link,thadbme.Take a look at this topic... this topic always stirs up things
http://xcrforum.com/index.php/topic,962.0.html
For the record I was originally looking at a SIG 556 and thats what turned me on to the XCR as that was what many online reviews dubbed as its competitor. I think I made the right choice, but I can see some appeal in the 556, but I'll keep my XCR!