10lb braid on spinning gear, leaders of varying composition (copoly, fluoro) in varying pound test and varying lengths.
Sky's the limit when you add a leader. The braid (I use yellow Power Pro) is great to watch as it lays on the surface while your worm sinks. I can see the slightest twitches and reel down and set the hook. Braid adds to sensitivity for certain. I love it.
Braid is better for managing line on a spinning reel. No memory to speak of, while fluoro, mono, copoly can often retain memory of the spool and coil off. Line spray will help that, but there's no need with braid.
Regarding retying hooks, leaders, once you get proficient at tying new leaders on, you will not mind it so much. Might I suggest you learn the reverse Albright (or variant thereof) and practice it. It is quick to tie, a super tiny knot that doesn't hang up in the guides, and it's strong.
Whether you spool with mono or other, you'll still have to retie hooks and eventually eat away at your spool, meaning you have to respool more often. Changing out a leader is more cost effective, IMO.
You can also pre-tie leaders/hooks and put them in zip-lock bags. Sharpie the line/test and hook/size on the bag. This can save some time, too.