I almost never deal with trade. I am so sick of people in trade who don't tip or make you wait 30 minutes while they look for mats. I just don't respond anymore.
I usually don't sell scrolls either raw mats sell better most of the time. I keep a stock pile for myself and friends (They usually mail me cloth and mats) I sell the excess. If mats get cheaper then scrolls which is rare I will sell scrolls.