DAMPER SETTING / DRAG FACTOR: 1.) 1/66, 10/146 2.) 1/69, 10/169 3.) 1/70, 10/190 #3 looks OK, depending on your elevation above sea-level. The folks a mile (1600m) above sea-level in Colorado get a noticeable effect on their drag. The other two machines are a lot less bad than I've seen, but could ...