I have three babies, all BLW and all totally different experiences. I haven't spoon fed them because I don't think it's so urgent they get solids that they need me to. Milk is enough to sustain a baby beyond 6 months and will always have more calories and nutrients than anything else you can give.
#1, 31 weeker BLW commenced at 27 weeks (I wanted to delay to adjust, paediatrician scared me out of it) took to it immediately and by 7 months (so not even at 6 months corrected) was eating exactly what we were, cut up for her and usually managing the same as her cousins and finishing their plate!
#2, 35 weeker with IUGR. I decided this time I would adjust and by then it was the advice to, when we got to 6 months she most obviously wasn't ready, she looked in size and behaviour like a newborn. Seven months came and she still couldn't sit up, foods were dribbled back out (OK, I said I didn't spoon feed, didn't stop others trying) she was EBF until about 10 months, she'd then take tastes, get up and have milk. Approx 22 months she decided she liked solids. She was 3 this week and is just moving into 18-24 months clothes and weighs about the same as the average 10 month old. She eats constantly and fills her boots. Apart from being a standard IUGR baby there is nothing wrong with her, she's a fairly healthy little girl. She's been checked out by a paediatrician as the HV wanted to be sure (bit too specialised I guess) but he was very happy.
#3, 34 weeker, again wanted to correct (which is next week) but she is picking things up and gnawing, however although she's enjoyed tastes of things she hasn't actually been bothered about eating so far, most comes back all soggy.
If CMOT comes here she has some brilliant old parenting manuals that have descriptions of weaning babies that start a lot later than 6 months.