Well, after overrunning lunch by 2 hours because I was fixing a production-line test rig (the boys have to come for Sat morning overtime to catch up now), I didn't have time to test an orange filter anyway, so I took it off and just ran unfiltered. Still as cloudy as all hell out there, same ev9 reading, same 8 mins, I'll see what I get out of it when I dev it tomorrrow morning (no darkroom tonight, seeing John Zorn)