Thanks for your inputs: Interesting idea with the computer junction box thing; is anyone out there using a homemade 13 pin splitter? From the looks of the us-20's guts (resistors, capacitors, an IC chip and some things labed "Q1,Q2,Qetc.")...it seems abit more comlex than simple wiring connectors/cables to a switch box. But i dont even solder, so good chance of it taking me forever and still not work! I'd have to hire someone to build it and i am sure the end cost would equal or near-equal a roland factory built product...since i would prefer a 4way switch, the question regarding the chaining of us20's is mostly curiosity, partly a "plan B" if it will work and i cant find a gkp4, and partly an obsession to get an answer to a long unanswered question ( i began my inquiries on this matter about a year ago). It seems no one on the midi-guitar forum, this forum, and the gr30 forum has ever tried to chain the us-20's! I dont even know anyone in my town that has a us-20 that i can borrow!