most people report that MAPP actually results in overheating, because the heat content is too low and beginners tend to over-concentrate the flame in one place anyway. My suggested practice exercises would allow the OP to either perfect his technique with MAPP or decide to move on to something with better heat content. What I found with LFB was that I needed a hotter flame to be fully successful, but I only found that out by trying it on practice pieces that didn't involve significant investment. I certainly wouldn't have been as comfortable experimenting on a full frame.