I never looked into the BLW materials - kind of wish I had. I believe like PP have said, it involves slicing food into very skinny strips. We did something similar - starting in on grated pieces of certain foods pretty early on. The large grated texture.
DH and I have a lot of experience helping adults with dysphagia (swallowing problems - high choking risks). So we applied that knowledge to feeding a baby. One thing to attend to - what does that particular food do once mooshed in the mouth a bit? Certain foods might seem very soft but if several peices go in the mouth at once, they easily form a "bolus" aka bigger solid ball of food, which is a choking risk! For those foods, we still only give Sprog a few bits at a time, making sure she swallows instead of wadding it all up in her mouth.
If we have another child, we'll certainly check out BLW.
Often bumbling mother to baby girl "Sprog"
Born November, 2009