GrayShadow's 'Giving Gogo Magic' code

I'm sorry, I'm stupid. The only part of that I understood is I need to start replaying because I did something wrong?

EDIT - Okay, if I understand this right, and I'm sure I don't - the bytes I pointed out were different, are telling the Rom to look at C0/1E3D / C0/1D28 for the Blitzes to be learned? Because if so, comparing my hack to vanilla, the bytes at both addresses are identical.