my point in the thread was if sakura used the rasengan she wouldnt have any chakra left to heal people with. she has less chakra than kakashi and kakashi becomes useless after 3 chidoris . imagine a giant battle sakura in the middle, she rasengan's 3 people and then her roll as a medic is null and the battle is over her teams dead.
mmm.. i dont remember anybody in the manga ever say sakura has lesser chakra than kakashi... where do u know it?
"Either Die as a Hero... or live long enough to see yourself becoming the villain..."
"Knowledge is power"