Yes thanks to you I just did it as per link, no problems. You are 100% right purging is so important in order fill torch correctly, I bet alot of people dont do this. I picked up neon 11x ultra refined butane. from what I understand it's very important to use refined butane so you dont inhale impurities. Ronson butane is supposed to be really bad for this and should not be used in devices you inhale while heating at the same time like sticky bricks.