Ok so I tried DIce again today with a brazed container. 1/2" base 2" wide 12" tall tube. Filled half way with small chunks of ice than a bit of 99% isopropyl alcohol and filled to top. Booted to -34C and it eventually went to -27C BIOS. Max clock was 3.1ghz. Temps skyrocketed and load would not hold. I took tube off to see bad contact with IHS. 2 remounts later I'm here with what I THINK is really good contact. Boots -40C now I'm at -25C. Load after a 1M Pi is around -10C.
What am I doing wrong? Does my tube suck? Do I need a wider tube? Some sort of maze pattern in the base? Different fluid? More/less fluid? Better hold down? Does my chip just SUCK? I might just get a chilly1 tube because this is really pissing me off