By Dianne Finstad There are a few things you can count on in the tie-down roping at the Ponoka Stampede; Peso, a little mud and Shane Hanchey. After the third performance of the 90th edition, you can add a new one to the list – Joel Harris. Although the forecast rain held off Saturday afternoon, the overnight wet stuff made arena conditions a little sloppier than the dry day before, which was right in tie-down roper Shane Hanchey’s wheelhouse. “…