You could but you can also truly control it (and also control gender, ability etc.):
Step 1: Right click on the seed with the desired IV spread and select 'Copy full seed to clipboard'.
Step 2: Go to the other screen (not Time Finder) and select method 'breeding BW'.
Step 3: Paste the seed where it says 'Seed (hex)'. Hit the 'calculate initial frame' button. Put 'Max Results' at 100 and hit 'Generate'. (also if you have a ditto parent or one of your pokes is holding an everstone you need to check the boxes 'ditto parent' and/ or 'everstone' and select your 'everstone nature' from the dropdown list before you hit 'Generate')
Step 4: You'll now see a list of PID frames. Because of the NPCs your starting PID won't be the one calculated by RNG Reporter.
Step 5: Start the game (hit your seed), leave C-Gear off, when the season screen pops up mash 'X' to get in the menu. Chatter once, exit the menu and immediately talk to the man by mashing 'A' once you've pressed to exit the menu.
Step 6: Hatch the egg and check in the list of PID frames which one matches with the egg (also make sure you've hit your seed by checking it's IVs). Now you know what your starting PID is when you chatter once and from there you can chatter the appropriate times for your wanted PID frame ^^
Step 1: Right click on the seed with the desired IV spread and select 'Copy full seed to clipboard'.
Step 2: Go to the other screen (not Time Finder) and select method 'breeding BW'.
Step 3: Paste the seed where it says 'Seed (hex)'. Hit the 'calculate initial frame' button. Put 'Max Results' at 100 and hit 'Generate'. (also if you have a ditto parent or one of your pokes is holding an everstone you need to check the boxes 'ditto parent' and/ or 'everstone' and select your 'everstone nature' from the dropdown list before you hit 'Generate')
Step 4: You'll now see a list of PID frames. Because of the NPCs your starting PID won't be the one calculated by RNG Reporter.
Step 5: Start the game (hit your seed), leave C-Gear off, when the season screen pops up mash 'X' to get in the menu. Chatter once, exit the menu and immediately talk to the man by mashing 'A' once you've pressed to exit the menu.
Step 6: Hatch the egg and check in the list of PID frames which one matches with the egg (also make sure you've hit your seed by checking it's IVs). Now you know what your starting PID is when you chatter once and from there you can chatter the appropriate times for your wanted PID frame ^^