true, this is your pic with a 9mm OD x 0.9mm thick O ring:
Earlier today I updated the reddit post to add a comment that the image came from you, with a link to your original post:
“this next post is the source of the photo by Tankolai”
I apologize for the incorrect attribution of the image caption on Reddit.. Im unable to change the posted image. Im grateful you posted the pic here on BLF originally..
thanks for clarifying that your switch button has a trit slot.. this is something Im trying to keep track of, because the inside of the switch button comes closer to the O ring.
the latest info I have from Firelight2 is that he finds a 9mm OD x 1.5mm thick O ring works well with his Trit Slot tailcap.
I did not find a 9mm OD O ring, so I ordered an 8.5mm OD one, from here.