Adding cereal to formula in Dr Brown bottles question

Have any moms on here used Dr. Brown bottles when adding cereal to formula? If so did it work and what level nipple did you use?

My daughter is 4months next week. Her pediatrician suggested adding cereal now due to her having reflux issues.

We LOVE our Dr. Brown bottles but I don’t know if those work when adding the cereal? Level 1 is too slow and she cannot get anything out. Level 2 seems to sometimes be too fast or again she cannot get anything out, and level 3 is WAY to fast. Does the cereal clog the vent? I tired to remove that but we have the blue ones, and you cannot remove those bc the bottle will leak.

Do I need to try a different style of bottle for adding the cereal? If so any recommendations?