If I remember correctly, when you are inputting your name, and you switch from uppercase alphabet to lowercase, it switches from even to odd delay. I might be wrong though. That was the case when I abused my ID's in Platinum.
Also, can someone help me? I'm trying to RNG a Larvitar on Route 206. I managed to land my delay, but instead of ending up on frame 4, I ended up on frame 46. I'm not sure how that happened. I battled the only random NPC on that route.
My seed is 700C06D1, and the spread is on frame 4. :s