MikeyFresh
1000+ Head-Fier
The first design didn't have the hole on the top, and that design was rejected due to air flow tube health/longevity.
So an engineer with design experience didn't know that a vacuum tube design needs ventilation holes? That discovery/finding is "recent" despite the fact the original "too difficult to produce" design actually had the tubes fully protruding from the top so that they could breath air freely?
You know, the design that we all pledged money to have built? The "Kayla" design. Or was Kayla actually just a pretty face employed by Gavin to induce IGG pledges in the overall scheme to defraud?