So turns out there is something to be said for specificity training. Therefore, if at first you don't succeed, dust yourself off and try again. And never stop learning.
The final PBP qualifier (the 300km) ended up being more of a mental battle than I thought it would be. But misery is a choice. And I have trained for toughness. Today I proved to myself, yet again, what I am capable of.
To Jump The Gun (def): to do something too soon, especially without thinking about it. (aka: what could go wrong). Leads to saying things such as "It's fine." Sounds like a perfect combination for my 600km qualifier for PBP.