Hello, I'm thinking of modding one of my basses with Classic Bartolini soapbars and am thinking of pairing them with a Glock 3-band pre with the mid centered at 550hz. I also plan to do paralell/single/series switching on each pickup. Is it possible to modify the Glock with a 3-position toggle that switches from 250hz/550hz/800hz? I've done this mod using a Bartolini 3 band NTMB with great success, but have never seen a Glockenklang paired with the mid frequency switch. How would this be wired assuming it's possible and do you think Best Bass Gear will pre-wire this setup if requested? Also, has anybody configured a Glock to 18 volts? I don't think I've seen an 18v Glock either. Thanks for any feedback.