Every time i change lures i waste at least 1-2 inch of line it was fine when i used regular mono, however with braid line its bit expensive.

 

Should i tie a quick connector on the end of the line and use it to connect it directly to baits or tie a mono shock leader from connector to bait thus eliminating need to waste a braid line each time i switching baits?

 

Are there any downsides to using connectors, for instance someone told me they lower sensitivity if float fishing fishing when there's no tension on line, or can make swim bait move wrong if connected directly to it.

If you are just looking to save line and time, just use a snap alone without the swivel. In most cases, the swivel serves no real purpose and just costs more. 

This was very helpful video to answer my question.
 

 

 

This also