I considered doing that once, but you can't group too many spaghettis, otherwise they become unbreakable. And I'm not breaking them (close to) individually, that's too much work.
So, I've gone back to the Italian-approved™ method for fitting them into a pot, which is to put them into the water as far as they go, and then once that part has become soggy/soft, you can slowly shove in the length that's still sticking out of the water.