Raichu is trying to rng the same Giratina I just did.
Like Mackenzie said, sometimes you do get anomalies, you get a really high or low delay.
Eventually after a few updates youl start to hit +/-6 of your target delay consistently
Eg, mine was 934, I got to the point where my calibrated delay went from 650 to 626 which
was perfect for me, I was hitting 928, 930, 932 and 936 all the time. At this point it is just a
case of trying until you hit it again.
My biggest piece of advice is do not do an update every single time, eventually youl start hitting
further and further away. Once youare close to your delay keep trying.
And yeah, set your DS time to the target time, as Eon Timer says 0.
The guide on Smogon tells you what to set your calibrated delay to.
I tried it and it really doesnt work, I suggest you calibrate your Eon Timer
manually. I used this guide and it worked well; from there I only needed a few
additional updates to get close;
here
Once you can hit your seed we'll talk about frame advancements
A little bit annoying in the distortion world but I now know how to do it haha