The only thing factory set that they recommend leaving alone is the temp at 158°. The factory high pressure is set over 101#. To lower that for smaller tires you must first set the low pressure setting, ie: 50 psi tires, lower to say 45 psi. Once your lowers are set, the high pressure will go below 101 to say 61#. It changes in 2# so setting it on 60# won't happen. 61# is fine.
Chuck and Joanne
2014 Flagstaff Super Lite Classic 27RLWS Emerald
2013 Dodge 2500 4x4 Laramie Crew
Equal-i-zer 1200/12,000 4-point WDH