Ive never had any problems with using my torch and the GVG, as long as you direct the flame straight down at the ceramic bit, all will be fine. Just make sure that the torch sends out a nice thin flame.
Disclaimer: Do not attempt this - il go so far as to say that im able to take a full hit of vapor and still able to pull the glass/ceramic filter bit off (for a second or less) to clear the pipe of any vapor, with no burning of my fingers. This is due to being able to direct the right size flame directly at the ceramic bit. No way would I even attempt this with a bic/big flame lighter/torch.
Disclaimer: Do not attempt this - il go so far as to say that im able to take a full hit of vapor and still able to pull the glass/ceramic filter bit off (for a second or less) to clear the pipe of any vapor, with no burning of my fingers. This is due to being able to direct the right size flame directly at the ceramic bit. No way would I even attempt this with a bic/big flame lighter/torch.