Hi ,
A very good friend of mine , a prominent dealer in antique glass in Amsterdam,told me of a recent and worrying incident regarding bubble wrap , they had for years like us all used bubble wrap to wrap glass for sending abroad , recently 2 very expensive glasses each double boxed arrived at there destination with the bowls completely smashed , no damage to the boxes , investigations with the relevent people revealed that bubble wrap when in the low pressure hold will expand the bubbles till they pop , if the glass is in contact then basically it will be crushed ,obviously the more delicate the glass the easier this will happen , a very expensive lesson for them and a warning to us all.
Cheers ,
Peter.