Vary Flow? My 4 week old is a big boy, over 11.5lb now in week 4. He is having 4-5 ounces per feed, typically 3-4 hrs. He was on tommee tippee teat 1 but was falling asleep mid feed then waking up after feed quite fitfully and looked in pain. So I switched up too teat 2 on Thursday and things have improved a bit, apart from we now dribble an awful lot of milk and cough... and since last night, only taking 3-4 ounces... so I'm thinking its now too fast. My question is, would the VeryFlow teats help regulate this please? TIA