I've noticed that many of the Fender Sandblasted and the Roasted Series seem lighter than a standard. This is based on not so scientific research of looking at the both new and old listings from Reverb, new roasted J basses, Bass Central listings, and TB classifieds. I can understand that the roasted process can reduced weight by making the wood drier. I don't understand how the sandlasted would significantly reduce the weight of a bass espeically considering these were made out of ash. Of course, my sampling could be scewed. Any thoughts or documentation on this?