In reply to Philip M:
Thanks so much for the responses guys. Sorry that I disappeared for a few weeks but my work schedule got a little hectic.
Rich - I've sent you an email so hopefully you can check out the photos.
Toby - I appreciate what you're saying, but if you saw the fit, I think you would agree that it doesn't inspire confidence! (is there a way to paste photos into the forum threads?)
Hannes - if I only wanted to use the Omegas then the hammer would already be out, but I don't want to limit myself to one boot. If I can get extra bales then that might be the road I take.
Matthew - I've tried both sets of holes and no difference.
Hopefully Grivel or Petzl will be able to get me a new set of bales and I'll go from there.
Thanks again for the help!