Naturally you can have solid temple points with hairline recession, but you can't have temple point recession with a full hairline.

Your blend, color match, density, EVERYTHING can be perfect, but a wearer can usually spot another wearer who has too full of a hairline for his temples.

It's one of those details that the general public won't necessarily pick out, but it can make things look "fishy". Although I don't think I had that much of a wideness problem per se, this is one of the reasons I went to a full cap. Now I can have whatever temples I want.