I have since tried them and moved on (the Carlos set!). I played Gut in High School and should have left it at that. For the playing I do which these days is mostly Orchestral, I prefer steels like Flexocor or Belcantos, period!
As a matter of fact, I got this Hawkes Bass recently (Carlos knows the bass.. lol) and the first thing I did was take the Guts off and put on some Flexocors.
So if Gut strings rock that's just fine. I don't play Rock!