Here is a picture of the harness connection between the TS switch and the main harness.
I have been able to get one brake light to work sometimes but nothing consistent regardless of what I try within the switch internals.
The brake light that never works still does work with the TS switch in the appropriate position so I am stumped.
Given the other items on my to-do list for the truck I will continue to play with the TS switch but at the same time move on to other items on my list. At some point I will need to decide if this switch is viable or if I should just move on to a new one. If there are recommendations regarding a preferred source/manufacturer's switch it would be appreciated in case I decide to go that route.