I’m on the waitlist to get a zrock2 sometime in the next year or two. Because I can’t help myself, I’ve already started the process of planning to  build a fancy rack for the new gear.  I was thinking about under mounting the zrock to facilitate a simple path for interconnects and for aesthetics.  Do you think 2 inches of airflow above it would be sufficient if there was good airflow side to side and front to back?  The fact that it has a tube was concerning me regarding temperature. Anyone who owns one care to chime in?  Does it run hot like typical tube gear?  Thanks.

Jon