I had similiar attitude with my 5 port in my 5t. The GO's like to be a hair lean on the bottom and richer on the hsn side. I chased it with the normal pinch test and came up with a richer hsn and less run out on the lsn pinch test. This seemed to be the ticket and ran perfect. Go back to factory settings and start with the lsn and then just a touch on the top. Thats what I ended up to get mine.