My first "real" tattoo was a cover. I did a lot of research and found an artist, luckily not far from me, who does an awful lot of cover work. My cover was drawn on by hand as that was the best way to disguise the original design. There were consultations about what styles I liked and possible designs, but I was very open minded as it was more of a case what would work best. Most tattoos these days can be improved or covered. One part of my old tattoo was re-worked and the rest covered. I know I am not really answering any of your questions but the main thing is that you have confidence in the artist you choose. The ones who have said it would be easy to cover, did you like their ideas? Is it a dark band?