Sasuke stated that Naruto wasn't being serious about their battle. So yes he is holding back hence why only 3 truth seeker balls appear.
Hahahahahahahahahahahahaha!!!!!!!!!!!!He has to gather the other 4 to make a wish
cos is a clone sasuke has being fighting all dia time.remember wen naruto was fighting kugaya,she bearly notice d real naruto cos of d rikudo dama on d clones bak.No. He lost them in his fights against Kaguya and Madara.
excertly .well said.That's just assumption based on him not doing it yet. It's still possible.
He wasn't aware that the balls would disintegrate and he also doesn't know how to fully use them yet.