Sorry Angelectrico, i thought that was your hairline, so please ignore my earlier comments.

Having looked at the video again, i think that piece is about the same as a Toplace 65% density. But you could definitely go for that style with the piece you have, and I don't think there is any danger at all of it looking wiggy.

One other thought. It is great that your girl is OK with the fact you're wearing a hairpiece, but it may not be a great idea to get her too involved in the mechanics. She may be cool about the concept, but it is a different matter if you are going to take the piece off and show her what is underneath, or constantly get her involved in evaluating your hairline glue. Unfortunately the horseshoe look with thick sides and a slick bald top is difficult to carry off in a romantic context LOL. She may prefer just to forget she knows you're wearing. Just my 2 cents worth derived from similar situations.