GrayShadow's 'Giving Gogo Magic' code

I pre-preemptively speed ran through the first part of the game, keeping the RAM Hex open to watch for the 10; it never came up, right up to the Vargas fight. 00 all the way. Is there anything in particular I should try to see if it triggers it?

$1E1D to $1E3F is unused in vanilla game so there's nothing in particular that can trigger this region of RAM unless it's something you modified. Is this the first time you play the game from start all up to Vargas and have the correct Blitz learned? If it's at 00 before Vargas, it should change to 03 according to what you've told me...