18sixfifty looks like someone did a review for you
Interesting but quite neutered in stock mode ain’t it?
I gotta get me some of that silicon carbide stuff (that others have mentioned in potting driver mixes) and mix it in with some 30min epoxy and stuff the pill behind the star (give it a bit more meat to soak up the heat)
And/or some ultra-grey sensor safe RTV from autozone
Either way…that thin “pill” if you want to call it that definitely doesn’t look like it would wick heat away hardly at all