I was playing around with shutter to try and get that mid point of freezing the riders but not the surroundings. And went down to f/2.8 for minor background blur as well.
For some of these, especially with hands down slides, I feel that getting everything sharp and in focus would've made it seem a little static and potentially stationary. I read about shooting moving objects and either adding some blur to capture motion or freeze everything but at such a moment where it's impossible for the shot to be staged, like say this one from a jam I shot in December (with a crappy cam). Adding that aggressive angle was completely subconscious and rightfully so.
Admittedly I was in a better mood that day and well, I knew what the camera couldn't do so I had to over think almost every shot.