Question on port matching

If you were to put a head on the flow bench and turn it on and hang a string with a ball in the end it doesn't just flow where you hold it unless its gods gift. Let's say directly in line with the floor ,maybe through part of the port....or with the roof.. think the straightest path ... so if you drop it at the floor it will lift up and hang right in the middle of the port on our production heads...or where the short turn is more directly aimed.

Tunnel rams tend to be the hot ticket for that reason of straightest path.