Lightning spear technique speed and accuracy

The Maschenny-style Lightning Spear technique that Ran uses is a Lightning Style technique invented by Maschenny Zahard,
who made an appearance a while ago.
It's a technique that turns shinsu into a spear,
so it grants the advantage of being able to take the Spear Bearer position without being armed with spears.
(Compared to ordinary shinsu manipulation techniques,
Lightning Spear techniques are much faster and have higher accuracy.)
As it allows one to participate in both short and long-range battles,
it is considered to be one of the 'ultimate spear techniques'.

Vol.2 Ch.47: 28F - Devil of the Right Arm (6) Blogpost