I added stabilizer last night and tested this morning and it ‘appears’ that my level went down. The one thing I can think of is that it’s a cloudy day hear. So instead of having a bright sun at my back, it’s basically a gray day. Would that effect the ability to see the black dot? I sure seems like it. No sun here until tomorrow so just wondering if anyone else has experienced this. Otherwise, adding stabilizer decreased my CYA.