I wrote Dave today after he suggested that I "... should have asked first!" that it's really up to him to communicate with his customers, not the other way around.
In my case, the entire drama could have very easily been avoided with a simple note in the ad.
When you placed your order I had not received the new meters and still had a couple of boxes of old meters, so your order was shipped as standard.
In terms of getting the latest build your order was a simple case of terrible timing, that once again could have been avoided if you simply had asked. You seemed very upset and angry that you got an older version and I offered to replace them but you refused, and that's fine, I have no problem with it, your choice. I'm not sure how many times I'm going to have to repeat saying this.
To be very clear, there are no specification changes, no operational changes, and no rating change between meters. Most customers would not care about every minute detail you care about, to them it's the same spec meter with the same performance, the same features, and the same warranty. They are fully independently tested by ETL.
I suggest major revision as the PCB revision had changed and the shim had been removed, along with other changes. Any changes to that switch design IMO is major.
This change has been know about since almost day one. There were 4000 assembled PCB's from the first Kickstarter batch, and I stated publicly at the time that all those 4000 boards would be used up until stock was exhausted and then the next production run would use the correct 1.6mm PCB that would not require the shim.