According to this recipe, it can be done on machine models that originally shipped with SL. But not new Mac Minis. Uses System Image Utility to create a suitable 10.6.8 netrestore image which is restored onto the new machine. https://discussions.apple.com/thread/326... I have used it on a MacBook Pro early 2011 model.
One day you might like to try "Undu" - scrapbooker's adhesive remover - dissolves the glue bond and then evaporates leaving glue intact. I think it's fantastic stuff - used it to remove iPhone 3G battery doing a total case replacement.
Suggest trying "Undu" - scrapbooker's adhesive remover. Brilliant stuff. (chemical = hexane) Dissolves the pressure sensitive adhesive glue bond, then evaporates leaving the adhesive still sticky for reuse. I have used it on iPhone battery with success.