Just got back from my first jam with the Sunbeams on my fretless Warwick Streamer 4 (P/J), and I have to say these are the best strings I've ever had on that bass. Mwaah for days. I've found most rounds on that bass to be squeeky bright, whereas the Sunbeams are what I'd call warm bright. They also filled in the lo mids a bit, so that I played almost the whole 3 hours with the bridge pup soloed. I don't usually like fresh new strings, but these were great (for me). We'll see how long they hold this tone. As an added bonus of the lower tension, the strings are a lot more responsive to my E Bow. If anybody is think of trying them out, make sure you follow the (included) instructions about crimping+cutting the strings. I didn't have any issues, but better safe than sorry.