All you need do is tilt the hitch head forward towards the tow vehicle and that will lift the bars higher to begin with so you don't need as many chain lengths to lift them and/or will reduce the amount of lift with the same chain link used.
You must not be transferring much, if any weight forward now if you are at the end of the chain. The Dual Cam requires some pressure on the cam/bar interface for the system to work correctly. I frankly have never heard of anyone running out of chain links in order to properly tune their hitch setup. Why do you think you have too much lift?
Barney
2004 Sunnybrook Titan 30FKS TT
Hensley "Arrow" 1400# hitch (Sold)
Not towing now.
Former tow vehicles were 2016 Ram 2500 CTD, 2002 Ford F250, 7.3 PSD, 1997 Ram 2500 5.9 gas engine