I can't tell from the posts if you are reading charts or using sheet music. If you are you will really need a 5 string. Lots of High School and Gospel music is arranged these days in the key of C and D and B flat. With a 4 string you'll be hustling to make some awkard runs that are a little easier with a low B. Also, with a lot of modern church arrangements, you can play the first two verses an octave higher than written. During or after the bridge drop back down to the written octave. Makes for a nice effect. I play a lot of Chris Tomlin arrangements two ocaves higher for first verse, drop down for the second verse, and really punch in at the lower octive for the last 30 seconds or so.