I would like to glue down some verneer.  It is quite wavy.  (old)  I don't have a vacuum bag,  in the past I have just added lots TB2 or 3 and weight it, pretty thoroughly.  Being as this is so wavy (I believe it is walnut of some sort, at least its walnut color, only highly figured,)  would it be prudent to make it damp?  Some one told me that and I am very hestitant.