Gen 3 Breeds : Hey Im M3 found something that always changed the breeds back to No Splits for me , when you are only hitting alternate spreads I open the Pokegear call Dad, walk to another spot around the old guy with the egg, and then save and proceed to soft reset for IVs. It helps me because saving and doing something in game wasn't doing anything, also my spread was going to alternate when the Trainers called me back on their own for subsequent soft resets so I just did the thing with calling Dad again and it fixed. I know its not much but hope you can test this out. Maybe you can add this to your guide if its true all the time.
I'm sorry I've been so slow. I only have to beat the Elite 4 but since I have only 2 lvl 50 mons I was thinking about grinding a 3rd one and finish the game. I think I'll have it ready by saturday if it works for you.
Basically, you'll want to set a custom timer in EonTimer with the following timings:
1. ~3 sec (you'll SR at the end of this)
2. 3.35 sec (you'll hit L+A+L+A at the end of this)
If Charizard/Venusaur's cry plays any time after during the title screen music begins, don't bother checking the seed. They'll be more constant when you get the timing just right. You obviously need to set L=A, but seeing as this allows for faster button mashing, the game will not register L+A+L or A+L+A as three presses if you're doing it at an adequate speed. A+A+A (or L+L+L) is not recommended because it's simply harder to pull off with perfect timing.
You needed a LeafGreen save?
Based on what you've done before I'm assuming you want to try retail cart RNG. If you decide to go through with it I can offer some advice, but keep in mind I haven't been able to pull off a project yet.