Hey Tonello
Big fan of P-line here in Florida in the 30lb test. I have never tried the ccx xtra strong. Would I be correct in assuming it's a bit thicker and has a real breaking strength above what is listed? Sounds perfect for steelheading in less than crystal clear water or hooking up in some weeds.

I have found many of the x-tra tough lines have increased visibility (correct me if I'm wrong about the ccx) and therefore I would probably forego it in canoe country for the same reason I don't use PP (although certainly to a much lesser extent). My first priority is stealth. The bigger the fish the more likely (IMO) they are to refuse a less than stealthy presentation. Of course exceptions abound. I have become fond of Gamma the last several years. Seems a good compromise, all things considered.

I had a near disaster type trip once when I had spooled up with P-line castable FC. I couldn't get a knot to stick in any of the lb tests. The line was either very old or it didn't like getting soaked in the all day rain of the previous day. Fortunately my partner had extra spools of green trilene xt (Great stuff.......still use the 4lb) and saved the day. Ended up with a mild confrontation back at Cabelas trying to return the stuff. Finally I got the fishing manager and dared him to tie a knot. Refund promptly granted for 4 spools of the blasted stuff.  P-line is superior, just tad bit thicker than most mono.    

lets talk about hooks for trolling!

ive tried a couple different single hooks for spoons and the rear hook on my plugs but i just cant find anything i like/works as well as the trebles. ive experimented with different styles and sizes. the best one ive found so far is the gamagatsu octopus hook. it seems to have the best hook up rate of the single hooks ive tried, however, to get the size i want, the hook is pretty large/thick and subdues the action a little bit.

on some salt water baits ive seen they run dual single hooks on the same splitring facing opposite ways. so its kind of like a little trap. id like something that hooks up well during trolling, but also doesnt mangle the fish. the problem i have with trebles is that they tend to grab too much and tear things. plus they are a pain to get out. i think the dual single hooks would do something similar to what a treble does hook up wise, but im afraid it might main the fish even worse.

obviously having sharp hooks is the most important factor, but im getting at details. i would like your $.02.

P Line flouroclear 8 lb. test has put a lot of big (& many more small) fish in our canoes over the years

Trebels are crutches.  Real anglers use single barbless.   
having said that, no I haven't swapped out all my trebels