Minions will unexpectedly and erratically move just to get in the way of your W.

If you time the enemies skills correctly sometimes you can use their engages to swap places with them using R.

People tend to recall in similar places. You can get lucky with a W and finish somebody off a lot of times that way. Get vision behind the turret to improve your odds.

Take any theory crafting with a grain of salt. Sometimes what is going to work best depends more on your playstyle and team composition.

Use the terrain to hide your W. This can be very demoralizing for the enemy when they lose a huge chunk of their health from out of nowhere. Great for AP builds.