I love trying string sets and finding a unique voice for all my instruments.
While the Pyramids never made it to be the one, they're the only one I know that always works, no matter on what Bass, and are my backup for everything. Love em, they (and their steel sibling) never felt out of place for me in years. I prefer the steels, since they cut better in the mix and last a bit longer, but the initial sound on the nickles is more fun.