I'm really enjoying this series and finding it very relevant to my photography. I love Charlie's images and my workflow is very similar (layers and masks). I have already incorporated some tips into my workflow, e.g., I have changed my background to white in Photoshop and find judging brightness of the print more accurate.
I noticed in one of the earlier videos that Charlie's files are in PEF format; since Pentax offers the DNG option as well, I wonder Charlie, is there is a reason to prefer PEF?
Kevin, thanks for mentioning the Dakine bag. I have been looking for a new bag and just received the 25L Mission version. Very well made and although compact holds my 645Z kit, which is identical to Charlie's, but also includes the 28-45mm, which is the shape and weight of a brick.
Again, great job with series.
Tom