I was curious if vertically stacked speakers make the horizontal output pattern noticeably wider? There a couple of products that come to mind. The Peavey MAX 208 combo has vertically stacked 2x8 speakers. There's also the Trace Elliot 2x8 Cab. I'm curious if those designs results in a wider horizontal output pattern. I could see how it would be useful to narrow the vertical output pattern, so you're not wasting amp power sending sound above and below your audience.