Notguilty...if you have quite a bit of density...you can tape just behind where the hairline starts you'll be OK...However if your desnity is quite thin on top or at the hairline you probably will be able to see some shine in certain lighting situations...There are different tecniques people has used on this forum...however I have never been able to use them with a real success...that's why I apply tape to thicker regions of the unit and apply glue up front at the hairline. Cheers