I wrote a quick article on noto a while ago and whilst reviewing some of my articles I bumped into it. It dawned on me that some people may be having the same difficulties that I had when I was first learning noto albeit for different reasons.
I found that the sword was deceptively long and until I paid attention and noticed the twisting of the hips I found it very awkward indeed. Having said this, some people are going to pay attention, twist their hips and still find it difficult. Everyone is built differently and everyone uses slightly different swords and for these reasons I think it's important to look at the different variations of noto and decide which ones are best for you.
I, of course approach this from the point of view not as a martial artist but as a cutter and therefore my version is basically a modified version of a traditional noto but I'm keeping it as basic as possible to show the core movements. Up and above that, it's up to you to tailor it as you see fit. The object of noto for a cutter is to return sword to saya as neatly and safely as possible. Making it look pretty is also a bonus ;)
As I said before, the best way to practice noto is to do it to death. Just do it again and again until it feels natural. You will probably have to concentrate more on your left hand than your right, shifting the saya down and around the blade and you will have to start really slow. Don't rush it, a fast noto can end in severed fingers which isn't very cool. Even though this noto requires less stretching, taking a step forward with your right leg and twisting your torso can provide even more space for this movement and turn it from being easier to being simple.