db wrote on Mar 12^th, 2014 at 8:54pm:

It seems to me line will twist easier than any swivel.

ive always thought this also. even with a fancy schmancy ball bearing zero friction expensive do-dad, the line will twist before the swivel will spin.

i dont use swivels for that reason, however, i also tend to stay away from spoons and inline spinners like mepps for that same reason.  just makes a nasty mess. if i troll spoons i use a small bottom bouncer as a weight a few feet out front to keep the weight away from the line so that the swivel actually will be useful.