I am wanting to weave some fabric for a lightweight summer top in 20/2 cotton in a Wall of Troy (twill) pattern but am confused about the sett. Jane's Master Sett Chart only goes to 16/2 but says 30 epi for a nice drapey twill. Handwoven says 36 for plain weave and 48 for twill and Schatt say 32-36 for twill. I know I will get my hand smacked for saying this, but at 30-48 epi I don't want to get it wrong and have to resley it all. Any help would be greatly appreciated. It is my first time weaving with anything so fine.