I have a six string bass and want to tune it to match the tuning of an eight string guitar. The tuning I want is Eb0, Ab0, Db1, Gb1, B1, E2. I currently have five strings (135, 105, 85, 70, and 50) tuned to Ab, but the strings sound too floppy. I saw at Conklin's website they have a 165 gauge, but I've heard it's too floppy to be tuned any lower. Does anyone know where I can get strings made for my tuning?