I have been using ultima power carp for most of this season and can say it is excellent in every way .
It does say on the spool that it needs soaking in water for about an hour before you load it onto the reels and i have done this so it has never gone all coiled up on me I have found that the abraision resistance is very good in fact better than anything else i have used, i have not had to strip damaged line of at all, like i would do after every two or three sessions on sensor for instance.
It sinks better than anything else i have used and seem to cast fine for me, I have been using it in 12lb that means it's breaking strain is 14lb so just right for what i do .
I would personally go for it again ,i wanted krystonite as that is supposed to be the best but this was much cheaper and i feel like it was money well saved.
It does seem to be very hard to see in the water but my one niggle is that it does need cleaning as it picks up the colour of the lake bed .
Briliant for hookb lengths too .