This location works for me. I like to cook indirectly with coals on opposite side from temp gauge. The food is under the vent.
All my kettles have one in same place.
New Braunfels Hondo Offset
New Braunfels Bandera (Refurbished & Improved)
33 year old Char-Broil 450
1996 Blue Weber SS Performer
2003 Black Weber SS Performer
Weber 22.5 OTG with rotisserie & Smokenator
Weber SJS & modified stock pot Mini-WSM
STOK Island gasser
Recipient of Official & Un-Official Moink Certificates