To view the tab better, right click on the music and select 'View Image', or go to the Tools menu and select 'Zoom'
By practicing the pentatonic scale with a pattern, you will increase your understanding of it. The pattern gets your fingers moving through the notes in a different way, so you're not just playing up and down the scale. This helps when you start to improvise and solo. You will be able to work with the notes in a more interesting and competent way, and your playing will be more dynamic.