If the OP is using stereo, TRS, cables his first task should be to get a suitable MONO, TS, cable.
Yes, the cords we are using for the guitars are mono/shielded cords. They are just 10 footers. I picked up a couple new 18 foot cables. The brand is CONQUEST Shielded Instrument. They seem to be of a decent quality. Says, "Handmade in the USA". And costed $20 bucks each. Was good enough for me.
I was just getting real confused when it came to going from head to cab and foot switch cables. And now even more confusion knowing I can connect my Beringer 12 channel Pre-Amp mixer to my sons and my amps somehow?
Im in way over my head here. But its too late. There is no going back now...lol