When my bb drank S26, she also had the problem of poo poo, now she is drinking snow brand and she does not have poo poo problem anymore, she has now 2 - 3 times soft poo poo daily.
My baby used to drink S26 until she 4.5 month old. Other than "ng ng" problem (she had "ng ng" w/ some blood for 2 times!), she always cry hardly during milk time (since birth). It usually take 1 hour for her to finish 4 - 5oz milk.
After she took the injection when she's 4 month old, she tends to drink even less, average 20 - 21 oz a day. After read all moms' advise here, i decided to change milk powder for her and now she drink beanstalk (japan snow brand), she can now drink average 26 - 27 oz a day and the most important thing is, she can finish her milk within 1/2 hour.
To some mothers, maybe they'll think 1/2 hour is still so long, but to me, i really very happy to see my baby's changes and i think i made the right decision to change milk powder for her.
Now I hope her "passion" towards snow brand can last until I let her try cerel.