I did a lot of writing, but not that added a lot to the word count. I did add a couple of thousand words to Skyway, but spent most of the time re-writing The Homecoming Incident based on our Beta Reader feedback. The end result was a couple of hundred more words in total, but a better story as a whole.
I also invested quite a bit of time hashing out the Skyway plot. It’s not a complex plot, but it has enough moving parts that, if you don’t take them into consideration, the reader will be pulled out of the story. I know exactly where I want to story to travel, but the specific steps within it require that all of the tentacles of the story remain connected and believable.