I think the issue is that there aer two completely different sets of people who play Rotosounds. Group 1 plays them for the sound they have right out of the box (bright, 'zingy', cutting, etc.); these people have a love\hate relationship because they lose that sound relatively quickly.
Group 2 (people like me) play them for the sound that they have after a few days of playing. I love these strings because they hold that sound for a long time.
My story is one of those, ”Believe it or Nots”, and I’ll try to keep this long story short.
Since I have so many basses, many keep the same strings on for years,
and since I’m basically a flats player that’s a non-issue.
I put steel RS-66 on my Musicmaster on 11/19/13 and since I don’t gig anymore,
I didn’t worry about changing them until lately.
So, being anal-retentive, one thing can cause a domino effect which is what happened.
I changed my Musicmaster strings causing me to change my Mustang strings because of
a thru-body bridge post I started, and both are thru-body.
I had some Fender nickel 5250XL on hand so I put them on the Musicmaster.
Because of my post, I needed to find out for myself what’ll happen if you put short-scale strings on a Mustang,
so I installed the old RS-66 on the Mustang, replacing the long-scale GHS Bright Flats installed 03/02/17.
I found it to be true that SS strings won’t fit properly because the RS-66 silks protruded about ½” on the E and A,
and I had to trim the silk, but SS strings Do fit properly on my thru-body Musicmaster.
Sound:
The 5250XL are bright and have that new rounds sound which is fine on the Musicmaster,
much different than the old RS-66, but the RS-66 harmonics are much better with more sustain.
Also, the finger noise is back with the Fenders.
The old RS-66 sound better overall on my Mustang, and the harmonics are still much better,
and I wonder if it’s because the GHS are long-scale.
I got some LaBella 760F-MUS which I haven’t installed yet because I still like the old RS-66,
but I’m sure they will be gone soon (back to the anal retentiveness).
Bottomline:
These 10-year-old RS-66 strings should’ve been dead years ago from what I’ve read in this thread,
but they still sound good to me.
So, is my case a fluke?
I don’t know but if I had a set of Swing 66 laying around, the Fenders would go back in the parts bend.
I must be in group2 because I agree with
@Fletcher Lanning….057912