Can I use a different yeast strain on this kit from Northern Brewer if I don't want to make it a sour beer?http://www.northernbrewer.com/shop/oud-bruin-de-table-extract-kit.html If so what would work? Thanks for any input. I may go ahead and brew as is........ I did not realize this beer needed such a long age before I bought it. I should have done some more reading before purchase.