Bang-bang using Talon-SRX and PID for a Shooter

[GuyM142]

Is this possible to use the Talon-SRX with a bang-bang algorithm so that the Talon checks the encoder value?
The encoder is connected to the Talon directly.
I want to do this in order to sample the encoder in a faster rate than regular code.

and another question:
What is better for getting a shooter to the target speed faster - Bang-bang or PID (using Talon SRX)?

Thank you.