Hi - I'm considering going sub-zero (Dry Ice first). right now I am using water and Direct-die so I must re-lid my CPU first. In the process. what product should I use between Die and IHS if I'm going sub-zero? Can I still use LM? I know LM is a no-go between pot and IHS, but can I still use it between Die and IHS? Anything better to use when putting back together the CPU?
Thanks

Use a high quality Thermal Grease, as long as you don't use LM it should be fine