So I decided to take the plunge and purchase another Absolute. I thought I would have better luck with All Star Batman & Robin as it doesn't have a dust jacket which usually gets stuck to the slipcase but this time I got glue between the pages!!!
Again, at no fault was InstockTrades responsible for this as they packaged it extremely well and was in the official Absolute box.
Now I have a section which I have called 'Arkham Asylum' where I store all the deformed books... well away from my 'healthy' collection
For reference, here are my previous instances which I posted on the old forum.