Okay I received my new unit yesterday, with the new CU. Not tried it out yet.
It's a huge improvement. The middle section which is now metal can me removed without removing the plastic plate. This means you can get something underneath the plate to help to move it up.
The screen in the metal section has much bigger holes. This won't clog, I am sure.
I also noticed the battery spring in my unit is way way stronger. It's actually quite difficult to screw down the battery caps. Hoping this becomes easier with time.
@YLLVAPE OFFICAL I have to say I am impressed that so many customer gripes have been answered in such a short space of time!