Picked up some white oak that was cut 2 weeks ago, monitored the temp. At this altitude, 9800 ft, the steam won't get over 200 degrees. So not even close to the 212 desired. But the green wood bent, I'm elated. I didn't have my clamping just right so it didn't work. Steaming again and changing the jig around. I broke a sweat bending it. Hope to be successful in an hour.
Covered the steam tube with some old throw rugs, temp was able to sustain at 204, followed Rollins instructions with the size, 1 5/16 by 1 5/16, steamed 1 hour 15 minutes. One small blow out, that might cut out, I believe the strap moved over a bit and caused it to fray.
My opinion is, if your bending white oak, get green, or air dried wood, kiln dried is impossible.
Pulled them off the jigs after a few days and tied them with a string, pulled them tighter, through some boiling water on them, dried them inside by the wood burner, shaped them, they went on great. Added a picture of the installed stem.