title_body: What are the benefits to different types of frame arrangements? When looking at different frames, there are lots of descriptions for different ways the arms are set up. Are there objective descriptions of how these arrangement change the flight characteristics rather than just &quot;I like the way this one feels&quot;?
  For example, looking at the iFlight frames, the XL5 and SL5 are almost identical, except one is a &quot;True-X&quot; arrangement while the other is a &quot;Squished-X&quot; arrangement.
  A few such terms that'd I would really like to see some solid description of the flight characteristics:
  
  True-X
  Squished-X
  Stretch-X
  Deadcat
upvoted_answer: Unfortunately it really seems to be a personal preference thing.
  I tried logging the same move on both pitch and roll on a stretched x frame to determine exactly how much difference there was and I couldn't find any difference in the results.
  Stretched x are generally preferred for racing, but Thomas Bitmatta decided on squished x for his JS-1 frame.
  For definitions:
  
  True X - Symmetrical in both X and Y dimensions
  Squished X - Wider than it is long
  Stretch X - Longer than it is wide
  Deadcat - Wider on the front than the rear
  Hybrid X - Wider on the back than the front (See XBEE MCK frame).
  
  The primary advantage of squished X and Deadcat is that you can keep the props out of the frame of the camera if you are running low camera angle.