My firebird with the little smily face stinks. Maybe about 3-4 before it hisses with no flame. Yep, I bleed it everytime.
My Nibo triple flame is alittle better but still maybe only 6-8 before it hisses with no flame.
I have what looks like a pb207 but came from a convenience store about 5 years ago before I even smoked that works best and has a sight glass to see how much is left.
Last I have a Jeep (non Jet) that seems to last forever and is still half full. I kind of prefer the milder flame if the wind isn't blowing and I don't feel like I overheat the cigar..

But hey, That's just me...