I think I know what he was talking about. When I first heard Naruto was going to learn a new technique, I just had to find out what the technique was all about, hell with spoiling it for myself. So I looked it up and came across this page that described the technique. I'm not sure if it's ok to do this. If it's not, let a mod fix the issue or tell me to do so.

Here's the link to what I read and what I think that guy is talking about (more levels of rasengan):
http://www.narutofan.com/index.php/c...iques,rasengan