Some folks prefer tighter strings so they can run very low action without buzz and clank. DR Lo Riders are thusly named (I think).its like knowing the nuances of a fine wine-
at first glance, players may not appreciate those nuances, but they are in the strings.
the feel, the tone are obvious.
but there is also a quality in the experience of playing them that is hard to peg down.
mine are four years old on my P bass and they still amaze me.
I also don't understand the rubber band thingy; I do set up my P bass a tad differently than my others due to the larger orbit of these strings but once its dialled in...
why make a bass harder to play?