Ok,

I was reading the topic on loop to loop, seems like some of the line makers are putting on a welded loop to the line, I like it because of the ease of changing leaders on the water but I do find it gets hung up, havent lost a fish yet.
I'v also tried those cortland loop to loop connectors and while I am still using them I think I am going to the butt section and blood knot instead. I had one of those loops come apart while I was casting it and the whole leader went down stream.
I have also tried those reconnects and they do go through the guides fairly smoothly and are pretty easy to change on the water but now that I am using sinking tips and leaders that sink that is not versitile enough. From what I am reading on the board it comes down to preferance of course, I think for the cost of the line leader connection systems out there in my opinion they are not any better than any other means of attaching you leader to your line.

wire