yes. that's often referred to as tweak. (which is one of the most overused words in the hobby)
tweak (in this case) is the force ratio/balance between all four tires. if you wear away one of the tires, it's like cranking the spring collar back on that corner, and that corner will end up with more grip. you'll need to move the collar down to account for the missing tire diameter, and take any other components attached to that arm with it (droop, sway bar).
i usually won't touch the collars in just one run, but after two it's typically needed.
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