I am running into a fun issue with DIAL using multiple URIx's on a RasPi 2. 

  The issue is that we have a variable delay between the radios. Sometimes the delay is virtually non-existent. Other times, the delay is almost 2 seconds. There is nothing else running on the RasPi. 

  I have a number of theories, including that this is a USB delay issue. 

  Anyone run into this? Or have an idea how to work around it? 

Thanks and 73,

Matt, NM1B