Dont know if I am the only one but I no longer knot my line to my spool. I just fix it with a small bit of electrical tape pulling the loose end under the tape so there is no tag end showing. 2 or 3 gentle winds onto the spool to start then you can reel it under pressure, as there is no knot everything is as flat as it can be.
I'm working on the principle that if a fish really takes me all the way to the spool then a knots not going to save me so why bother having one ?