I believe you have to save in front of your egg, and start the game as fast as possible, take the egg, and catch a Pokemon.
Find it's delay and offset.
Do this a few times and use the delay/offset you get the most in the DPPt Time Finder. Now generate seeds for the IV's you want.
Take the egg on the exact same date (including seconds) as the Time Finder tells you to do, and hope you got the right delay/offset.
Jonny explained how this works via MSN, but that was before 4.01 was released.
I didn't understand exactly how this works, but I think this is the correct way. Ofcourse, use the method: Breeding (DPPt)
@Yahtzo: Only for IV's, not for shinies.
@Vo-Dee: Using an R4, you can SR and still have the codes active.
But, if you really mean reset to check the IV's, then no, when you reset, the seeds will be different and you can't get a shiny using that pokemon's PID. If you mean, reset for a faster shiny frame, then yes, you can reset, but only when using an R4.