Ok, I've been trying for days and thought I should see if anybody here can help me. I'm trying to catch a semi-perfect (31 in all IVs except for Attack) Timid Mewtwo from Cerulean Cave in HGSS. I checked with the seed-to-time converter on RNG Reporter and I need to hit a seed on 7/26/13 at 11:59:35 with a delay of 599. I tried this, and persistently missed my seed by quite a lot. Upon learning that you need to wait until EonTimer's beeper goes off TWICE (felt like quite an idiot after that one), I tried it again doing (to the best of my knowledge) all of the steps correctly, but upon verifying my seed through roamer locations and/or Irwin calls, RNG Reporter informs me that my time is off by two days, so I hit a time of 7/28/13 at 11:55:25.
I'm not sure if that's enough information for anybody to be able to help with, but here are the steps I followed from the beginning-
1) Opened the 4th Generation Time Finder and entered all relevant stats and capture methods (Method K, Stationary Pokemon). Desired seconds is set to 35, and the year is 2013.
2) Generated list of seeds, selected the first one with a Synchronize lead, as that's my preferred method of ensuring the correct nature.
3) Copied this seed to clipboard and pasted it into the Seed-to-Time finder. As all roamers are active, I checked off the boxes, leaving the specific route fields blank.
4) Selected the first entry in the list of generated results, which shows a delay of 7/26/13 at 11:59:35 with a delay of 599.
5) As per the instructions on the Smogon Tutorial, I set the Delay fields to 50 each and the Seconds fields to 2 each.
6) Set EonTimer to the recommended defaults suggested by the Smogon Tutorial (490 Calibrated Delay, 14, Calibrated Seconds), and inputted the target second (35) and the target delay (599)
7) Set my DS Lite to the target date mentioned in step 5, and to the appropriate hour and minute, activating EonTimer at the precise moment that the time was reset on the DS Lite.
8) Reset the console, waited at the main DS menu until the first timer reached zero, pressed A to start the game.
9) Mashed A to speed through the intro, waited at the file select menu until the second timer reached zero, pressed A.
10) Immediately opened the Pokegear to verify seed.
11) Verified seed. Wept.
If anybody needs more information, please let me know. Thanks in advance!