I used cloth with my other 2, but am doing disposables this time for convenience and time saving for me but yes, if a b/f bubba especially hasn't had a poo for a couple of days, watch out - but in all honesty, I find the side leak proof leg thingies ok, but yes it can escape up the back if the nappy has been on for a while cos the nappy relaxes the longer it is worn.

Happy washing LOL