zoomkat - Yes, its acutally a UBEC. It's an old habit from the r/c car days to call them BEC's. I switched the UBEC output from 5V to 6V and I still get the twitch.
AWOL - I changed my starting position from 50deg to 90deg. I still get the twitch.
Let me give everyone more detail. When the myservo.attach(servo) line is executed, the servo rotates 30deg clockwise. It doesn't matter if I write a myservo.write(start) before this line or not. The attach line always causes the 30deg cw rotation. I've tried manually moving the servo horn to some random position before energizing the system. Even then, the servo rotates 30deg cw before going to its start position. I'm stumped.