Thanks, I think I found the problem. All parameters were the same except for Timer0, which was 75B instead of 75A. I'll try this a couple times more to confirm.
This is weird because I did try finding my DS parameters while holding down the Up button, just not using the target time, and got 75A.
Does that mean different target times also affect Timer0?
Oh, and, I'm a girl, not a guy. :P
Edit: I tried again two times and I got a Timer0 of 75A on both occasions, hitting the method 5 for wild pokemon frame of 1. (Target for egg would be 8 and give me the correct IV spread I'm looking for as spread for wild pokemon and gift pokemon are the same.) So....