If you "have to rock the bike and feather the clutch" to get into first from neutral with the engine running, then you need to check your clutch adjustment.You Should always be in first by the time you stop…but sometimes you’re busy avoiding some azzhat to do this. In that case you may have to rock the bike/feather the clutch to get there
You should always stay in 1st at a stop…but I put it in neutral if I have two or more cars stopped being me.
I’ve read news reports about bikers getting rear ended at stop lights, worked with one bike who was put in the hospital for that very reason. One time I flashed my brake lights when I saw someone coming up behind me quickly. That was enough for them to not run into my backside but I was glad I was ready to move if she hadn’t.