In reply to JayPee630:
I too have used Charmoz boots with G12/G14s and climbed up to III/IV.
I love the Charmoz.Rock climbed up to S/HS in them.They were fine on the Papillons ridge (Aig Peigne).The only problem has been that I occasionally have started to feel the cold a little more if on a more severe/cold day.
Mine need re-soling, and do not know if this will be worthwhile.In the meantime I used Mont Blanc's due to the Charmoz tread going.I suspect that the tread does not last as long as on some boots.
Rob