I'm sorry for the confusion. Let me try again. I confused myself.
http://www.flypfc.com/specials/specials.html
I'm looking at purchasing the "flight simulator combo $1,295.00" at the above Precision Flight Control's site.
The throttle quadrant is what it is, a serial device.(You write the drivers for these, I'm told, in the form of the pfc.dll). The yoke and pedals in the above package come in one of two ways.
1. Both the yoke and the pedals plug directly into the throttle quadrant(DB9 connection). The quadrant then plugs into the PC via a serial cable.
2. The yoke and pedals have usb cables and can be plugged into the pc directly. The throttle quadrant still plugs into the pc via a serial cable .
My question is, besides the rudder trim knob on the throttle quadrant, is there any benefit from you PFC.dll to having the yoke and pedals(option 1) connected directly to the throttle quadrant.
If not, I'll order the yoke and pedals wired with usb connections isolated from the throttle quadrant.
I spoke with Precision Flight controls, and they told me to read your documentation about the pfc.dll to decide how I want the yoke and pedals wired.