Im new to the XIM apex, i had the XIM4+3.
Got my apex today, spent the whole evening looking for a good config and good curves, tried at least 6 different curves/setups to get my apex feeling right.
I tried your extreme setup first but i couldnt set a curve to make it feel right with 500sens at 800dpi with the G600.
Gave this purist setup a go, its incredible!!. Best tracking ive ever had on fortnite ever. This is the only setup ive found that can push through the aim assist and feel 1:1. This tutorial is absolute gold thanks heaps!!
Looking forward to kicking some more butt with this.