I recently picked up a quartz banger and found it to be my favorite way to blast off. I dump about 50mg in the banger. Light it with a torch until it's starting to melt. Then, I cap it with a carb cap and torch it until I see a dense amount of smoke in the banger.
I suck it all in while continuing to torch it. My friends don't like this method because it's harsh on their lungs, but since I can handle it, I don't mind.
It has a 100% success rate so far.