No, I use kill switch on the handlebar
I don't see how you are saving wear and tear of the handlebar switch by turning off the bike with the "master switch" on the side of the bike. The handlebar switch turns on the bike, and starts the bike. So every ride it's 1 push up on the button to turn on the bike, 1 push down to start the bike, then 1 push up to kill the bike. You're just bypassing the last press. So I press the handlebar button 3X , and you press it 2X each ride. But we both still press the handlebar button the same number if times to to start the bike. So if the button fails, from use of starting the bike you would still need to replace the whole unit. That's where I fail to see how skipping that 1 press at the end of the ride to kill the bike will save you any wear and tear. And in actually you're introducing unnecessary wear and tear on the side button by turning that switch 2X each ride.