Ive searched and cant find an explanation... I have a gmajor 2 and in the manual it states that the 2 relays can switch up to four channels... I just don't see how. one jack, one relay for tip and one for ring. each operates by grounding out the said relay. How on earth can it do more than two?!?!?!? Im a noob at this so I'm sorry if the answer is an easy one. I run a Mark iv and would love to figure this out.