I have used pens and threw them out…you will spend more time playing with the pen and trying to get it to work than you will solving real problems…
the real problems are not from the table drawing out your pattern but the settings when you are cutting…
spwend the time learning the software for your design work…that is where you will see problems and solve them before cutting…
then any problems you have cutting will be minimized by doing clean patterns…
as for table settings with the torch…the pen will not show that…only real life cuts will show that.
so do not start with large projects…start with the bottle opener …do it until you get a clean cut in different metal gauges…
do it in different sizes to see what happens…
the pen is not mightier than the sword in this case…ahahahah