I am looking for a lightweigt p-bass body. I heard the Squire Pro Tone series had ash bodies. I know squire is crap but eventually i will upgrade everything. I already have a great neck. My question is of these woods which is the lightest and are their significant weight differences b/n them? -ash -basswood -poplar -swamp ash (same as ash?) I have heard koa and other woods are light, but they are beyond my budget.