heard (and personally lived) many bad experences about costruction of the IS.
Usually happens to see problem with lamination in the area between the footstraps and/or just in front of the front ones in the carbon or wood/carbon models.
We have seen it in boards built in 2010/2011/2012,used with the max care for an average number of times.
Post it here because unfortunately that's not an isolate case but pretty common in our country.
Sorry for the complaint but wonder what you reply.