The OEM ti knob is very, very thick. You'll need MAPP gas to get the knob to change. It'll take a minute or two also as opposed to my Spoon knob which just takes a second with Propane. If you're interested, the torched appearance only lasts a couple of weeks before it fades back to silver. I long ago decided I was tired of torching the knob over and over so I just buffed it out to a nice shiny finish.

If you want pics, PM "ijorgei" or do a search in the gallery. He posted pics of his a couple months ago.