I have now replaced the fuses with new 5 amps, the nails where only a joke, strangely as soon as it ignites it now goes up to 40 amps, obviously i kill the power in less than a second as I don't want to ruin the unit, can anyone help, I want to be able to make a controller to vary the power but cant run it at this level as it will die in seconds, I have read somewhere that you can set the upper and lower limits on the logic card, does anyone have an idea about this. Thanks guys.

Tony