What do you guys think of wire guardians/cable thimbles then??

I've attached the links as examples for those of you that might not have either seen or heard of them before.

http://www.beadsisters.co.uk/beads/l...bf-gt-wgdn.jpg

http://www.palmermetals.co.uk/Sterli...021-11378.aspx

I find, personally, that they help with the wire abrasion, but when I put them on some of my necklaces, they catch the clasp

What do you guys use?

off to bed........

Jules x