In my hunt for new strings I stumbled upon Roto 55's. The few reviews I could find seemed promising: a sound similar to a set of Roto 66 while feeling much smoother due to being pressure wound. What's there not to like?
I just strung them up, and wow are these nice. They lack a little of the high end that a set of 66's have (A good thing IMO), but the mids have just as much if not more punch and snarl to them. The lows are thick and rich with a nice growl. The sound is very well balanced between strings. I can get most of the sound I like from a flat EQ on my amp instead of boosting the mids way up. All around awesome sounding strings.
As for the feel, they'd still be disappointing if you can't stand the grabbiness that Rotos seem to be famous for. They aren't as rough feeling as 66's, but they feel rather sticky, especially the D string. I'm starting to like how that feels for my fretting hand, but it feels weird playing fingerstyle. Finger noise is still abundant, though it's been too longs since I've used Rotos to tell if it's as bad or better than 66's. If you can get over those qualities, these are some very good strings.
The green silk wrap isn't too shabby looking either. Great strings, possibly my new favorite.
Rotosound Solo Bass 55 
