Downside any 'large" knot is it can interfer w/ the line winding on evenly. Small the better it seems.
I do a two loop surgeons at the end of a std arbor knot.
I have never had the luxury of being spooled and if you are using braid you have whimpy mono back there any way so it won't matter what you tie.
Reality is If you are down to the knot on ya spool you will never be able to get it wound on again since it will keep on slipping around and around.....LOL.
I typically do 25% for spinning gear, but talking to some CA outfitting tuna guys they do 50%! Hurt the fish fast and hard before it has time to recover makes for better release as well.
I have a feeling its going to be a LONG winter.
