I have a question with the 3dr quad.  I was out flying a while back and this is something that keeps bothering me.  It was in auto mode.  I have sonar enabled.  When the copter rolls does the sonar think that is is farther from the ground than it really is.  This causing to lose some altitude and then it try to recover but then it is to late.  Were on the log can I find what the sonar is doing.…