Well did some more Experiments.
First i tried putting Liquid Metal between the Shim and the Vaporchamber.
Worked okay, but the Risk was to high for me. PTM7950 is easier to apply and not that risky.
I made a Thermalpastebarrier arround the Shim.
Well for my next Test i sadly destroyed this Heatsink, i broke off one of the Retention/Holding Screws around the CPU so i had to further improve my Soldered Heatsink.
Reaheatet it thoroughly moved and pressed the Shim as good as possible.
Quiete alot Solder came out there. Had to lap the whole assembly to get it sitting evenly again.
Well now the latest Test. Liquid Metal between Die and Shim. 
The Result speaks for itself…
80W Peak TDP and around 63W Sustained TDP
about 16,6k CBR23 Score.
I think this is what i will keep. Have to improve the Spillagebarrier and make it really spill prove. But for now i will be stationary for some time, so the LM can settle with the Copper
