There is a new video update below.
PWM of amp control for the FLEX is working but the board is a bit of a mess. We are putting out version 3 right now.
In other news, I sent out an email to the PRIME backers about a week ago. Originally I thought PRIME funding would help FLEX development but with less than 300 people interested in the PRIME and almost 5K FLEX units to make it's the other way around. Oh, the irony. A number of PRIME people asked if they can update to FLEX. As we move in to manufacturing we'll figure out a way to give that option to PRIME backers for those who desire it.
As always, thank you for believing in the project.