Personally, I like having the compression adjusters and I do use them. I noticed a significant difference when I had my truck loaded down in the rear and did some higher speed off-roading in the desert washes. Aside from having some compression adjustment capability, there are other performance benefits to the adjusters. Here’s some info from accutune:
Other Benefits of Compression Adjusters:
There are many other lesser known benefits of compression adjusters that improve the performance of your shocks such as increased damping, better cooling and more consistency.
Compression Adjusters are basically a second damping piston which works off the displacement of the piston rod and meters oil flow into the reservoir. By adding a second damping piston the damping area and damping force are automatically increased. This is important for 2.0 shocks on solid axles and 2.5 shocks on IFS, which can run out of damping force. Because the compression adjuster piston is located next to the reservoir it does a better job putting heat into the oil where it is more easily cooled. Finally the compression adjuster piston significantly reduces the ability for the shock to cavitate and loose damping. Small amounts of oil can easily flow into the reservoir, but compression adjusters generally don’t flow large amounts of oil well, meaning they’re forced through the main piston, making it do it’s job. These benefits by themselves are often worth adding a compression adjuster to your shocks.
Hope that helps!!
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