I have a solution: just live somewhere that is below freezing 100% of the time. My clunk has been noticeably better when it is cold out.
Other than that...my hope is nearly gone for a true fix.
2012 Ingot Silver Ti Sedan
Former: 2005 Focus Hatch SES, 2004 Mazda3 5door, 2001 Focus Hatch ZX3
"Son, your ego is writing checks your body can't cash..."