2 things:
1. How many EV berries do you have? Because I don't have them, nor do I have a way to plant them yet.
2. How many Feathers would it take to re-EV a level 100? Assuming you reduce the 255 to 100... that's 152+152+4 to EV it.
But I'm glad you found someone to help you out. :P Good luck!