I found them to be a little too high tension for me (I normally use DR Sunbeams) but they sound and feel great. Definitely not your run of the mill, everyday string.
However, just for kicks I put the E string on my Warwick Streamer and I was quite surprised at how much louder and more robust the Progressive was than the Rotosound nickels I normally use on that bass. I'm now keeping that bass tuned down a half step, and with the higher tension of the Progressives I think they will be perfect for that tuned down bass.
However, let me ask you a question since you are familiar with them...assuming you are buying the 4 string sets...does your E string have the 'saddle hugger' tapers? This is the only reason I didn't keep the ones I have on my Warwick...the taper starts right where the string meets the saddle. If I can get non-tapered E strings I'll put them on my Warwick next time.
As a side note, Jason at bassstringsonline.com sells singles so you can build your own custom set with these. He put me a custom set together with a .135 B string which is phenomenal. I just couldn't find a home for them, I actually have them for sale in the Emporium right now
