As the title says; A batch of stout with WLP004 stopped at 1.020. I gave it a good stir, but no avail a week later. instead of ordering a new WLP004 which I have to mail order and pay postage on, I pitched half a packet of US04 that I had on hand. Any ideas what to expect from this stout? or any experience of using 2 yeasts strains in 1 batch?