Nice read, there are a lot here that I adhere to, but my top 2 are:
1. Think long and hard about any modification you make. The intent is to make it better not worse.
2. Do NOT glue yourself to your project! (No need to. Ask how I know this.
)
i used to to work at the airport in operations and a pilot once told me: "We measure with a micrometer and cut wit a chainsaw."
Not sure what he was referring to.