After using medium gauge Boomers for over a decade out of pure habit, I decided to try something different. I went to Bass NW and told Gabe (I think he's a new guy) my story and that I wanted to try something 'brighter and lighter'. He asked me what I played (Kinal 5 fretless) and suggested light gauge SR2000s. Gauges are 44 /60 / 78 / 98 / 125 Hold on and don't crap your pants Batman, these things kick ass! I can't even believe the difference. I think my bass was made for these strings.