This will be the first time installing a gutter. I have a MDP with a gutter coming out of the side running underneath several sub-panels. I was looking for input on what you guys use to join the MDP and gutter together, would a chase nipple be acceptacle or a rigid nipple and would these require a bond bushing or is a additinal ground even required if all of my grounds remain unbroken thru the gutter. I am calling this a gutter but what is the difference compared to a metal wireway other than one having a limited distance it can be run.