Is it possible to max out stats, HP and MP all at once?

[Nifleheim7]

Like I said...get lotsa clear spheres, and lotsa spheres for the attribute you wanna raise. When you fill up the whole sphere grid, use a clear sphere, then use the other sphere, then the clear sphere again, I mean you can use the name node over and over and over and over, and there's a sphere for each attribute (I think).

When a node is cleared anyone who has activated that node loses the bonus it gave.

So what's the purpose of the clear sphere then??
You can clear and refill sphere nodes as much as you want and still raise your attributes until you max them (at least in PAL version)