I am making an Orval clone and my primary is finished fermenting and ready to rack to secondary and add the WL 650. Last week I made a 1.5L starter for the WL 650 at 1.040 and had on a stir plate at 70F for 7 days. Nothing has happend with starter and gravity is still at 1.040 so I assumed I had a bad yeast vile and dumped it. Purchased another vile of 650 from different shop made same starter and after 3 days still nothing. Am I doing something wrong? I have been brewing for over 10 years and made many starters even some with Brett but never had this problem.