Mikechh, you are correct, processing and spinning the yarn will effect fabric softness, as will other factors. Left Hand twill however, will feel a little softer than RHT if the same, Z twist yarn is used. The quote you have added is basically correct. When you touch LHT you're rubbing against the twist of the yarn, so it feels more open and softer.
11/6/10 at 3:39am