More on my latest obsession in this Q&A on Surfline. It explains why and how fins work.
Doc Lausch made my 9'0" with a lot of rocker and a bump in the tail to "loosen" it up. It also has a really hard rail at the tail and a round pin for bigger waves. He also makes his boards REALLY light and is generally known for his shortboards. I'm pretty sure this is why I surf my Doc like a long shortboard (or I'm trying to).
I've discovered, as the swell has gone down, that a thruster longboard doesn't work as well in small waves. Bigger waves, though, yi-yi-yi! Swoop down and up and back down again to make the most of the wave. Luckily, today, with the tide push, there were still a few larger left-over waves that came rolling through for me.