No, it's not of huge importance to me. After all, the whole example of the cat/cart thing was just an anecdote. I was just getting a bit fed up of the wriggling around Msz was doing under scrutiny. If a child has been taught to use initial letters and pictures and then says 'cat' for 'cart' without a picture (also failing to self correct when seeing picture) one interpretation, not Msz's clearly (oh heck, assumption warning), is that there not initial letter recognition and use of picture at work here. There is whole word recognition (thinking 'cart' is the known word 'cat') and that recognition gives some phonic accuracy (making the correct sound for 'c' and 't').