Linear regulators for high power are gonna cause you some problems. If you're sinking 12V down to 5V, your TO220 are gonna be putting out 40% more heat than the sticks will.

Our original idea for the Gekko hub was to put in per-port power monitoring. I still think it's a cool idea, so nice work there.

As for hub stock, we got hit by parts price increases pretty severely so had to take the thing back to almost zero to redesign for parts we could source affordably. Couple that with a fairly time-inefficient case manufacture process and limited time available for dealing with issues around CompacF manufacture and you see the problem. Good news is we're solving problems and improving our tooling and shipping hubs. And also shipping sticks faster now too. 2022 is shaping up to be a pretty good year for GekkoScience products.