Ok, so I finished a tank on the MPT3 with the 0.9 ohm coil and opened airholes last night and everything was perfect. No burns, no dry hits. Really diggin it. FYI, I drilled the bottom 3 holes out, but there is still a restriction because of the airflow through the coil opening. Still much beter than it was. Also gives the coil a bit more air to run cooler.