I have yet to work with pine, but I am well aware of it's reputation (splintering, sticky sap) and am impressed with what you're making with it. I look forward to hearing how you like basswood, you're in for a real treat and will likely laugh as you make your first cuts (know I did, it cut so easily). I think you've done plenty of practicing!
If you're looking for a source of bass, you might want to check out these guys:
www.heineckewood.com I used some of their wood for the 'Sun King sconce', I glued two 4" planks together.