[darkerside]

You get used to it :)

At first, err on the lower side, and 4dd. Over time, you'll start viewing things in chunks naturally, which probably only helps your code scanning ability, which is probably half the benefit of learning Vim. You get really good at looking at code like building blocks.

And undo is an easy one... Just type 'u'!

Like any skill or tool, it often seems not worth it before you know how to do it. But every time you learn a new skill (like you just learned undo!), it makes you more efficient for the rest of your life! How amazing is that?