my DD has gagged and chocked on everything since she was born, fingers, dummies, bottles and pureed food and lumpy food as she got older.... i had her observed by a speech and development team and they said that her gag reflex is really strong and to keep persistenting and trying and eventually the gag reflex will de sensitise and low and behold at 8 mths she can now drink from a sippy eat food chew on fingers etc......its up to you wether you stick to puree food or lumpy food but i think it will de sensitise with time..and being 1st time lumpy food maybe was just a bit of a shock for him..