Hi buddy,
I do not know the reason that you want to "Stopping the VMware USB Arbitration Service". Is it conflict with your current application ? If no, why not try to uncheck "Automatically connect new USB devices" in "VM Setting ->USB controller panel" and check "do not show this hint again" in hint dialog when pluggin a USB device to host ? This will minimize the impact when pluginging in a new VM.
Thank you.