In Paul Brodie's video, his flame sounds much less turbulent and generally just looks softer. This to me implies a slower gas flow out of the nozzle. My understranding is when lighting a torch is to open up the acetylene until the flame stops producing soot, then open up the oxygen to get your neutral flame. Additionally, if running too little gas flow there is potential for the flame to start combusting inside the tip, instead of at the tip. If I dial back the gas flow to get a softer flame, that would imply starting with a 'soot-ier' flame. Is that ok?
Thanks for the suggestions!