Agreed! The adjustment collars are there for that purpose. Each persons vehicle and Weight loading is different due to your specific options (roof, bumper, winch, windshield, etc) for the front, (storage containers and what you put in them, rear bumper, roof, etc.) for the rear, and how many passengers, radios, interior storage, tools, speakers, subwoofer, etc. etc. etc that all contribute to both front and rear wheel weight leadings. All different for each vehicle. These rigs have “adjustable, coil over Shock/spring suspensions“ at each corner which allow for great adjustment to suit the individual setups within a great range of differences/options.
In fact, if we were to really want to best set our individual corner heights for optimum handling from left to right turns, we can ”corner balance” the vehicles by adjusting each corner height individually so as to equalize (or close to it) the LF+ RR weight and RF + LR weight. Race cars do that all the time. Here we most often focus on front height and rear height together adjusting each side of the front and rear equally without regard for “cross weighting”. On a race car where handling is even more critical, the very same car with the same driver and identical weight from one day to the next will likely Change Springs/Rates, front and/or rear for EACH different race track!
All this to say, everyone should realize that as Owners of a uniquely configured vehicle, options and weights (not to mention weight of passengers) we have the responsibility of adjusting our preload to achieve our desired ride heights and handling characteristics. These are not on road passenger vehicles that are most often totally NON Adjustable. Our vehicles are Very adjustable and have huge Percentages of weight differences for different User set ups. Even if you do go with Shock Therapy progressive spring set ups, they wil HAVE TO know what your specific vehicle options (I.e. weight!) will be AND predominant riding style/environment to select the specific spring rates (I.e. weight ratings) that best suit those specified conditions.
Oh, one important caveat I think is often over looked, especially with the “more is better” mindset...the higher your ride height and clearance, the easier it is for the vehicle to roll. So, BE CAUTIOUS when cranking up preload and ride height higher than what you are used to pre adjustment and/or you go over the std 14.5” of clearance. I’ve seen people set up a vehicle pre load and ride height for heavy weights such as 4 passengers, lots of storage and spare tires, etc. with ”optimum” ride height for a particular day and set up, then on another day with only one/two vs four passengers with less weight and cargo start out with a lighter and higher vehicle go out and “get surprised” by a tippier vehicle and roll potential. Once again variables are real and need to be kept in mind whether we are complaining about what amount of clearance we have on our standard shock collar and spring set ups vs. what options/weights we have changed from a bone stock vehicle (no roof, storage, spare tire, tools, radios, etc).
Good Luck All.