dd is22 wks. she is 91st percentile for weight and able to sit well in a high chair. she is GREAT at putting stuff in her mouth 
i think she's ready to wean, but she's not 6months. will 4 wks matter?
also we're on holiday for 4 days next week. i will be doing puree till 6 mo and then bits of blw too. should i wait (although she is MEGA hungry) till we get home or just stick to a few bits of banana while we're away?