LOT test, movement of head and ligs.
While doing the LOT test, many guys have reported movement at the top base of their penis while doing the kegal. I think for most, if not all, this is the LIGAMENTS reacting to the kegal.
When you begin to see the Loss OF Tugback of the head, and you see a movement in your base, that should definitively be your LOT. That is the exact point that your PC no longer affects the outer shaft, and the energy from the PC is affecting the ligs.
I think the reason some guys are having problems finding their exact LOT, is because they are getting some head movement, because the PC is working through the ligs, and the ligs are pulling back the outer shaft slightly.
Don’t make it too difficult. If the head does not pull back much, and the base is ‘flexing’, that is your LOT.