I had to do a little research before I could reply Mike- as that hasn't been my experience.
From what I read yesterday , you're absolutely right , electro etching in salt water is not " line of sight" in some instances - basically it can depend on the size of the container you are etching in.
Looking at your page, you use a 5 gallon bucket , where I use a small plastic storage container.
In the 5 gallon bucket, if I understand correctly, it allows the voltage to create a large “field” to surround your entire part. Where in my small plastic container , there
is not enough space around your part to allow a large field of voltage to develop.
Hence our varying results.
Learn something new everyday !
Guess I'll have to try it out.
Live Oak Studios