Scratch start is just the very basic setup..it can be usable but if you have the resources to get and use a high frequency start or lift arc it makes it MUCH nicer...and a foot pedal to control your heat at all times is also a big plus all around,havin the heat very low on a start makes it much nicer to have more control before you "throw the heat" to it.making sure you are in the exact spot you want to be before the work begins...it is also real nice for controling the heat through the weld to keep the heat zone controlable and possible burn through.....it is also real nice for the stops,your not "yanking" the torch quickly away from the end of the puddle to stop the arc and possibly losing your inert atmosphere before the weld puddle cools,causing contamination.
The reason that machine has the pedal and not the torch is most likely because the torch is a consumable,probably was wore out or even used for another machine they bought in place of this one.
Finger controls have thier ups and downs....if your in a spot laying down on your back or in any funky position it could be nice....but in a good position i didn't like the finger control,i felt like it took more focus attention and steadiness from the torch hand to control the puddle more fluently everytime youd try to turn the knob for heat adjustment, it sort of hindered the focus and steadiness of controling the puddle...i geuss with alot practice with them it could be real nice..i just personaly like the foot control better when possible.
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