this one is tough for me too and it seems like a tricky spot for others as well- mainly b/c i don't like to shave the right side under-jawbone area with my left hand since its too shaky (i can get the corresponding left area with my right hand on the atg pass. ) For the right side underjaw atg pass, i use an unusual grip with my right hand. the razor is open to about 280 degrees. with the edge pointing up i put my thumb on the side of the tang and my index and middle on the other side of the tang. the ring and pinky is under the monkey tail down to between the 2nd and 3rd knuckle of the ring finger- locking the blade in my hand. then shave up on the right underjaw with your right hand with the heel closer to the chin and the toe pointing to the ear. i kind of curl the razor up to keep the edge angle pretty small. hope this helps