Board Thread:Versus Debates/@comment-26107879-20180404070647/@comment-6769189-20180607083129

FTG worked perfectly fine without Rasengan long before Minato was around.

Rasengan and Rasenshuriken have way different advantages and disandvantages. Every jutsu is full of openings and very few jutsu have a guarenteed success of landing.

Lightning Armor has no stated tunnel vision problem, just because it is similar to other jutsu doesnt mean it has the same advantages or disadvantages. Chidori Nagashi is almost the exact same jutsu and offers almost none of the benefits of Lightning Armor.

Because Lightning Armor speeds up the nervous system, the nerves in the eyes would be speed up as well, allowing the user to gather more information and send it to the brain faster.

Sasuke didnt use tunnel vision to his advantage, he was faster than A was anticipating. Your theory is also completely contradicted by the fact that A was able to find Minato even while moving at full speed. He also charged at Madara while having his speed enhanved by Onoki and still managed to whack Muu who was not directly in front of him. 3rd Raikage was also able to keep track of the Rasenshuriken while he was in motion.