Staying within limits by shifting weight & adjusting the WDH

Just curious how many chain links you are using? Since your weights vary with what you carry you can adjust the number of links used accordingly instead of having to tilt the hitch head each time. The bars when tensioned up should be close to parallel with the frame but one link more or less won't change position much but can affect the weight transfer. I would adjust the head for the heaviest tongue load carried and adjust the number of links for the others.