Used by modern players such as Allan Holdsworth, whose playing first inspired me to check out these fingerings, four-note-per-string scales can help bring a more modern flavor to your lines, expand your knowledge of the neck and allow you to cover a large amount of fretboard real estate with just one scale shape, which are all beneficial to players looking to explore non-traditional scale fingerings in their playing.
I remember listening to Holdsworth play when I was a kid -- with complete disbelief at what I was hearing. It almost didn’t sound like a guitar. The speed and the wide intervalic playing was simply amazing. It wasn’t until I saw live footage of him playing that I began to understand how he created that amazing sound.