Your mileage may vary.
Burned it at 2.4x speed?
ABGX auto patches a game if it needs to, if it doesn't do that, it either doesn't need patching or is patched.
Burn XGD2 and XGD3 with IMGBurn.
Tutorial on how to patch with ABGX... I have written a very detailed tut on GBAtemp, a little google...