Originally Posted by Fat FSLAR
I did 10 Elm Calls to verify, then used Youngster Joey. I'd sometimes advance a few outside the zone, and then in it. I did keep track of the frame, but you might be right (I think entering the cave with Lugia sometimes advances the frame, and this is a similar scenario with the zone)
That only happens when you trip the 128 step counter. The counter doesn't reset when you load the save so if it gets tripped on one attempt it will happen every attempt meaning you can account for it.