ACC-8P-TRS microphone adapter

I just purchased the ACC-8P-TRS 8 Pin foster to 1/8in (3.5mm) TRS and RCA for FLEX-6400(M) or FLEX-6600(M). I am a little confused about how it is wired. I rang it out before plugging it into the radio and Yaesu microphone. I found that the tip of the 3.5mm TRS plug did not go to pin 8 on the 8 pin Foster adapter. The tip on the TRS plug it going to pin 7 on the 8 pin Foster adapter.
The wiring diagram for a Yaesu microphone show MIC+ is on pin 8 and MIC- is on pin 7. In other words the white wire of the microphone cable goes to pin 8 and the shield or braid goes to pin 7. So, what is a mother to do about this situation? Call Flex and ask them?