Aagh; I have drawn you a lovely picture and it won't let me attach it to my post.

But essentially the line of your template would follow the edge of your hair on the photos where you are wearing your piece. In the same way the hair in those pics falls across and covers up your recession at the temples, you would design your base to cut that corner in roughly the same way.

I will try again later to post the drawing.

Incidentally, you said you have started doing something different with your hairpiece recently. What did it look like before?

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Aagh; I have drawn you a lovely picture and it won't let me attach it to my post.

But essentially the line of your template would follow the edge of your hair on the photos where you are wearing your piece. In the same way the hair in those pics falls across and covers up your recession at the temples, you would design your base to cut that corner in roughly the same way.

I will try again later to post the drawing.

Incidentally, you said you have started doing something different with your hairpiece recently. What did it look like before?