I found a crack in my 06 Meta 5 VIP frame a few weeks back.
Despite having bought second hand Commencal and Madison honoured the warranty and have just sorted me out with a new 2008 frame.
This is great service and I'm feeling very lucky and happy about this!
Steve from Skyline cycles did all the hard work, despite me not being a regular customer of his. (Though I do pop in when I'm visiting Afan.)
So rest assured, if you do have any problems, it seems Commencal and Madison are keen to do the right thing by their customers.
Happy Christmas everyone
