Hi all. Long time lurker, first time post. I was recently asked to do some artwork for a few 48 sheets and supplied specs from different producers. One mentioned the stretch factor and the importance of leaving a margin of error on the right and the other didn't. Nothing unusual there and I always work to the specs provided but I'm wondering why some make no mention of stretch and others do? Is it down to whether or not they are printed in one piece or sections or what. I was wondering of the stretch factor is still relevant as I've seen a few specs which don't mention it. Then again there is one well known outdoor group who still have an incorrect safe size (as a percentage) on their artwork spec sheet so who knows. Cheers all.