Thanks Graeme, I think firstly I'm looking for some advice about covering black and grey work, I have some work on my leg at the moment which I'm looking to add to but I think I should cover up a couple of areas that I'm not completely happy with. I recently had it redone but initially I was looking to cover parts of it, the artist that did it said I cant cover black and grey with black and grey on top. So I took his best judgment and just re-worked the tattoo to tighten it up, a mistake on my part I think now. What would be your thoughts on the best colors to go with to cover up? Originally I had suggested a deep blue but was told it may not work and in the end some of the old tattoo would be visible again.