... and that's exactly why I'm in Belgium and my car has a manual shift
Manual shifting gives you more freedom and thus more and better options, once you get used to it.
They use it in races for a reason.

I am, when riding my bike, actually always very busy trying to avoid debris, potholes, cars and regulating my breathing and cadence ... I don't have time left to shift gear inches at a time by changing both front and rear at the same time ... also it'll get me out of my cadence and ruin my speed.

I've got a 11-23 10-speed cassette too ... the spacing is close enough for my liking.