If I play popular songs like "Amazing Grace" with many different interval jumps in all 12 keys on my sax, is this a good way to practice IFR Exercise 2? Or does this complicate the idea?

drawing of the IFR Cloud exercise on the banjo

I play the five string banjo with open G tuning. Yesterday I bought the IFR method book and I see that guitar and bass players use a special version of Exercise 1. Is there a special version of Exercise 1 for banjo?