If it ain't broke.....
I tend to replace my running line(s) annually (mainly down to what I use and where I fish) so the fear of a factory pre-formed loop detonating on me isn't at the front of my mind, knots worry me more
However, I can see you'd worry about that connection after three years. Honestly I think it's more likely for a polyleader loop to break and that
has happened to me at least twice; but only when I've been hooked on the bottom.
You could form your own loop, with a perfection knot or similar, to replace the factory loop in your existing running line if you're worried about it failing on you.
Or, more reasonably, replace the whole running line.
If it was a complete AFS kit you bought then chances are you have Rio Powerflex running line (yellow
) which I think was a mono-core ??? I stopped using it after serious cracking compromised its performance and when my 'fishing drug supplier' found me new addictions to try out
But that Powerflex lasted (at least) two relatively hard seasons use and I don't recall any loop issue.
I have been experimenting with other running lines including RIO’s new ConnectCore which is new to the market for 2014. I tried it out for the first time on the Tay last month and I like it very much a lot with a cherry on top, I particularly like the handling line section which has a coating that differs from the rest of the running line.
I also use Mackenzie running line and have various spools of Varivas shooting line kicking around, each have their strengths and weaknesses but, on the whole, I've never considered the factory preformed loops to be an issue - even after time.
H