onebigelk
You are correct the pink is the thicker of the two. Which tape you use depends on how tight the plug is in you ML. With some ML's the pink is to thick and will not screw into the port with cutting and balling the tape up - so in that case use the white tape.
I three of my Knights I use pink tape ant in 2 others I use white tape.
And as shown pink is to thick for the Triumph...