Thanks rbb!
Doesn't seem to curl as well as it used to - am a lot coarser too - which I ain't ravin' about! Am also as porous as I ever was. I don't know why that should surprise me so but I suppose I was expecting to be less porous now I'm not colouring. I know one can be naturally porous but my underlayers are def not porous but canopy still v porous. All probably down to heat from hairdryer, environment etc. Just had a cut so curls may spring up in next week or so!