I will check, and yes you are right, because I change a sprocket to 36, and setup the derailleur on 7th cog (red) and I have to setup on 6th (my mistake). Then I will check the rattle...
My Pivot rattle on my first ride (after 20km shuttling) fast speed on waves from braking, especially on higher frequency irregularities. On my "old" Amflow PL I also have a rattle noise, but coil shock and Cascade link help a lot...