In a game based around seconds having a few extra milliseconds makes all the difference.
I struggled with range on the spells mate and still do with champs I rarely play, I just however over the q/w/e/r at the fountain to see their range to remind me and that is all. Trust me you will more than likely suck at first, I did but I stuck with it.
It's like anything practise and you'll get used to it, that being said i've not tried it yet so will have to see how hard it is to get into the swing of things, your right on with what you said though, milliseconds matter
