Jayman,
there's no point in us arguing about this anymore. it's obvious you don't think it's necessary to put something on your hairline if you're taking dutasteride to fight the increased testosterone. whether it's a 104% increase or some other number doesn't matter. just go on the dutasteride forum to see all the people talking about how dutasteride either increased or didn't stop or slow their frontal loss. and considering your hairline is more sensitive to androgen hormones (since they're usually the first to go), it's sensible to conclude that such an increase in testosterone, an androgen hormone (even if it is 30 times less potent than DHT), will have an effect on your hairline!