You have tried every kind of p-line and it has the most stretch of any line? I am pretty sure you are mistaken and when talking about CXX I am not sure there is a other line with less stretch even made. But to each there own and that's just more for me.

X2 on this

It has memory like all coplys, but stretch is not an issue on P-line cxx or fluro's from the times I use it.....It is a good line for sure and you don't need to go as heaavy as you normally would....15 cxx and I am confident I am landing any fish as long as I am not flipping or puching heavy cover.

X2 on this

X3