Some of the links on this forum allow SMF, at no cost to you, to earn a small commission when you click through and make a purchase. Let me know if you have any questions about this.
Yes, I ran into issues where the smoke would blow back through the intake if I opened the vent too much. I ended up drilling 6 3/8 holes on the bottom side of the can. Using the tube, I have no issues now and get a complete burn.