I started a thread regarding Shimano Invisitec line which I like but am struggling to get hold of. I was recommended Matrix Horizon X as an alternative which looks to be good stuff. It is only 0.18 at 6lb. I was looking at various alternative reel lines and was surprised by the huge difference in diameters for the same breaking strain. For example Guru Dragline comes in a6 0.25 for the sane BS which is nearly 40% thicker. Maxima Chameleon comes in at 0.22, Drennan Feeder and Method, 0.23 as is Preston Sinking Feeder Mono. So my question is why the big differences in diameter and does it affect their performance?