Right now I have the Shure 7 piece mic kit, which is all intro stuff. The overheads are PGA81. I'm finding the sound is pretty decent with just the overheads, bass and snare, especially since I moved the overheads to behind the kit to get a clear view of the top heads. Anyway, I'm wondering if I'd notice a significant improvement with higher quality overheads? If so, looking for recommendations.