See there you go again. Taking a conversation and making it a slug fest. Shame on you again.
The pony is one of the best E fighters in the game. It can also turn very well but like anything it is limited.
Unless a the 51 were to sit there and stick soley to his energy advantage making very shallow turns, and unless the spitv was a complete newb, the ponys time on earth is very limited.
When you start to burn E on the 51, and start to run out of alt to turn into E, you're in big trouble when you have a spit5 on you. 51's dont accelerate well at all when low and slow, they dont climb well either when they have no E to carry them.
Given equal pilots, co alt, on merge, the 51 can control the fight, but he's not going to win it by turn fighting.