I actually have a -1.4 moment on the mains. The mains are ahead of the leading edge so they should be negative and the tail should be positive. Maybe it's different with sweet wings but I would double check your measurements again. The mains are only + if they are tri gear mains.
I'm -1.4 on the mains and +167 on the tail. The SS7 workable range is 9.00 to 16.00