Here is a video of a pipe that i recently scrubbed. This is a 4 to 6 transition dropping into the main.
https://www.youtube.com/watch?v=e1ESjID_Ow4
https://www.youtube.com/watch?v=CtArpc8Q_Ts
https://www.youtube.com/watch?v=e1ESjID_Ow4
https://www.youtube.com/watch?v=CtArpc8Q_Ts