The OP says that his syn gut is way off in tension, but compared to what? Figuring out what tensions work on your new machine is trial and error. In the Spring, I got a machine almost identical to yours. I had been having my string jobs done on a lock out machine. I figured it out after a while that I should string four pounds lower than his particular machine.
4 racquets: Dunlop, Dunlop, Dunlop, HEAD
Alpha Pioneer DC Plus stringer