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I have spent a ton of time with type of welding. It sucks and I wouldn't like to do it anymore. But if it's what you got and you are good with it, use it.
I was badass with oxy/fuel when I was in high school, but I haven't really used it much since. If it's what you got, use it. I always got good penetration, if you're decent at it you should be fine.