It was an unsuccessful enhancement and I was very disappointed I used cover pink in zone 2. It looked awful and did not cover the clients natural nail line at all! When I was done with the enhancement you could totally see the line of her bitten nails through the pink. TG it was the owners daughter (a freebie) and 13 yrs old because she couldn't have cared less. But I am wondering, is a cover pink a definite necessity when doing this procedure, or can I just use an opaque pink?