Can IO and EA be vibrated into each of the watch towers? I noticed it was given direction to use on the torso to work on the four corners which is powerful.
i seen it also said on jos that IO can also be used on the four corners, but isnt as powerful compared to correctly vibrating the proper mantras for each section. the three chakras though with extensions having 4 corners like such would it be correct to vibrate it into those individually?

You can try it daily and see what results you get.

Yes, this will work. The Raum meditation does work on the watchtowers.