Hi guys Im looking at having a go at making a bush shirt by useing one of my old smocks as a template. The problem is I cant seem to get my hands on 100% wool but I can get 80% wool 20% polyester how do you think this will perform for our needs as in will it still melt if sparks fall on it and will it hold moisture in the same way synthetics do. Basically what im asking is do you think I would be wasting my money by buying the 80/20?