itachi said ems was perfect doesnt mean it is rinnegan is the REAL perfect eye power plus they said it was perfect at that state cause he could never fuse with the frog like jayria to collect chakra while he fought naruto jus found a way to surpass him anyway doesnt mean its perfect like the risengan he need clones he perfected it in the end but to perfect it from the beginning ended with him learning how to make it with one hand like his dad which he never did...brah
Your run-on sentences are hard to read,
"Perfect"-Having all the required or
desirable elements, qualities, or characteristics; as good as it is possible to be.
Verb
Make (something) completely free from faults or defects, or as close to such a condition as possible.
EMS IS perfect, and so Is Naruto's "true sage mode"
This entire time, you had no clue what perfect even meant.