Unfortunately your action looks high like mine was and I doubt playing with the relief will make much difference.
Couple of things to try
1) Buy a new lower profile bridge (I bought a musiclily one from Amazon which is lower by a few mm
2) make a shim. It is pretty easy if you follow Simons instructions on my build diary. I ended up using a bit of pine and filing it down as my bass wood disintegrated when I got it thin. The thick edge was 1.5mm high when finished.
3) recess your bridge posts (this is my backup plan if the action is still high when I install the bridge posts properly.
Everything I have read says do no mess with the neck foot pocket.
Sent from my iPhone using Tapatalk