Have tried most of them and best for me so far has been the Gamma. It is also the highest priced. I had the same problems with breakage using Vanish and P-Line. With Carbon Pro I just had to change the line every other week. Could have been something I was doing wrong, I don't know. But since switching to Gamma I have had no break offs during the hook set and I can go half the year without having to change the line on the spool. I also don't use a palomar knot. It could just be me but any other knot besides a palomar works best for me. I use a double uni 99% of the time. And if I am using 8lb or less then I use a Trilene knot.

I have a spool of the new Daiwa Steez line but have not had a chance to try it. I got it at Plapps and it is less expensive than the Gamma.