B&M Converter is bad

Ok, Distributor will welded up tomorrow and probably be ready to put back in tomorrow night. Im assuming I dont want to weld those holes shut anymore than what was in that article??

I also want to make sure that of what springs to install. If I install both of the light springs, full advance will be at 1200rpm. If I install one spring and keep the medium spring full advance will be at 2400rpm. Where do I want it at?