I have 4 instruments with dual 1/4in TS output that I want to patch in stereo: digital piano, e-drums, and 2 guitars effects pedals. 25ft would be a good length. However, I'm having a devil of a time finding dual 1/4in male TS to dual 1/4in male TS stereo patch cables. Do people just not patch instruments in stereo? Do they use pairs of mono instrument patch cables? Do they use L/R RCA cables with RCA-to-1/4in TS adapters? Ideally, I'd like to buy a 100ft reel of raw cable and solder on the ends myself. But I can't even seem to find the raw cable.