When we went to look at pools, interestingly enough, the scupper type was much quieter than the sheers. We were trying to decide between the 2 and my hubby liked the noise from the scuppers-it was quite a soothing sound. But from this forum, I had heard that scuppers were louder than sheers, so I was surprised by it. Maybe the sheers were taller and therefore had more drop than the scuppers we saw.
Kim, thanks for the visual!