Proportions on various wootz etching solutions

[katana]

Hi Dave and Battara,
thankyou both for your input . I have to agree that a sword would have been maintained regulary....and on that basis I should clean the blade as best I can. So as not to remove too much metal, I will try to get a even smooth surface and leave some of the slighty deeper 'pits'. Then try the etch.......and see what happens.

Regards David