I've done Bantu knots on mostly natural hair ( I had permed ends in the front & the back was completely natural) and the style came out absolutely beautiful. Bantu knots can be done on transitioning & natural hair.

My Bantu knot out

perm to natural .. w out big chop??-imageuploadedbycurltalk1369943079.181974.jpg

The resulting curls

perm to natural .. w out big chop??-imageuploadedbycurltalk1369943107.663853.jpg

The back

perm to natural .. w out big chop??-imageuploadedbycurltalk1369943149.284296.jpg