Yes, I designed these strings. They reason they sound more "modern" is that I wanted a set of flats that wasn't "too" thumpy. I was aiming for more clarity while still retaining the warmth of other flats.
Thank you for designing such a great set of strings! Along with TI flats, the 9050Ls have been my favourites over the years. Great on every bass I have played for many different kinds of music. Like TIs, they are always well balanced sound-wise and just super-versatile.