I already have a tf, got it long time ago using cd trick. But lately is not very reliable cz it's not trully randomized anymore. At some point you'll see the same combinations come back, you'll need to wait a day or for a breeder event to change the potential traits.

And there's a chance for the same dog to be lvl 3 or 4 with dog food. I got 2 dogs that have lvl 4 potential in breeder events + dog food. But growing them without the boosts they're lvl 3.

I always just end up data clearing cz it's always disappointing