Thanks
The problem is I'm getting the exact same result whether I have 0.1 amp or 0.01 amp or anything in between :/ I did bring it up to 1.7 just to check and it was still the same if a little darker in color.
I did discover yesterday that the copper underneath the "bumps" is actually strong and I can polish it to a shine with my dremel tool.
The bumps do show up in sort of vertical streaks though, so I have ridges and groves and I'm afraid to go too deep with the dremel in case the bottom of the grove is really thin.
In any case, I will keep trying to get it right