Stove-Off

(EDIT: This topic has been split off from the titanium topic. Use this topic for talking about actually meeting up to look at or compare stoves.)
I used gas when I first started walking and switched to a metho Trangia kit soon afterwards. I've recently been considering switching back to gas again, because it's so much nicer to cook with, and the kits seem to be a lot better than they used to be.
Is it possible to remove the burner from the gas cylinder while the cylinder is still mostly full? When I last used gas while walking (about 20 years ago), you could only separate the burner from the cylinder when the cylinder was empty (or otherwise you'd get gas everywhere!).
I used gas when I first started walking and switched to a metho Trangia kit soon afterwards. I've recently been considering switching back to gas again, because it's so much nicer to cook with, and the kits seem to be a lot better than they used to be.
Is it possible to remove the burner from the gas cylinder while the cylinder is still mostly full? When I last used gas while walking (about 20 years ago), you could only separate the burner from the cylinder when the cylinder was empty (or otherwise you'd get gas everywhere!).