The majority of bands fail because they don't recognize this: playing, practicing, laboring over a song makes you intimately connected and invested with that music. You know the ins and outs, how long it's taken to learn, all the changes and cool chords. Soon you have a 2 hour set of personalized labors of love. But your audience doesn't know that. When you are the audience, YOU only give a group or song about 60 seconds to decide if you like it or not, and so does your own audience. This means you tilt your songs and performances towards easy assimilation by the audience, especially at the beginning of a set so they buy into you and are more open for the less usual things you're doing.
IV/V is a smoother modulation than V7. EX:F/G smoother than G7 to get to key of C or a C chord. G F A C. It's actually a G11 chord.