Yeah I agree.. this is just normal sound . I changed my settings to 8 F / 10 R and then 10 F / 10 R. I still can hear the squeak but it is not as noticeable as it was with rear setting at 12.. This is only when there are medium-large bumps.
Not sure if I want to go stiffer like 6/8 settings and it will eliminate the noise completely.
22 MY LR