I know myself too well to even try the knot method. I haven't started my first reroot but I did just order the hair. I do know I'll definitely use the reroot tool and glue.
I use the reroot tool and glue as well. I'm not patient enough to use the knot method. It also sounds quite complicated, though it's probably because I haven't tried it.
For my Pirate, I used the knot method combined with the reroot tool. I didn't need to add glue, but I did anyway because she had a section where the rubber had torn a little.
Basically, It works almost exactly the same as the Tool method.
Instead of just draping the plug over your index finger, you tie the plug in a loose knot.
Before pulling it tight so the knot closes, leave it open enough to slip your index finger into it.
Make sure the ends are nice and even so one side isn't longer than the other, then scoop it up on the tool's needle as normal.
I generally put the index finger of the hand holding the tool over the needle so the hair doesn't slip off, and pull the knot tight so the hair is now tied around the needle.
Then press the hair to the tool using the index finger or thumb of the same hand holding the tool, and stick it in the head.
Pull the tool out again and give the plug a tiny, gentle tug. Just till the knot hits the rubber, and move on to the next one.
Over the next few minutes, the rubber will relax back into the tight hole, and the plug will be secure.
That method is WAY easier on the hands. I could do this for about 10 minutes at a time directly after my carpal tunnel surgery, even while wearing a cast. No struggling with sewing needles and thread or wire. I have no idea if it's faster since I have never done a full reroot using the other methods.
Bonus: You can boil perm the hair without having to worry about glue melting inside the head.
If you paint the scalp to match the hair, try sealing the paint with Liquid Fusion glue. It says it's water proof, and it's what is used in that one tutorial about how to cut off Clawdeen's ears and still make her rerootable. I have NOT tested if this will make a boil perm possible. I am theorizing that it would, but I have no idea. The one doll I did so far is not getting boiled. I keep meaning to do a test head with that, but I have been super busy with my new job.