>5V weld voltage is too low for most usable welds
However, the ESR of the capacitors is a factor and if I switch the arrangement from a 5S2P, ESR will make the maximum current to be something less than 600A rather than the 1300A that the current arrangement is capable to deliver for welding surface resistance equal to zero. Is it still a good option to change the arrangement of the capacitors?
As for the MOSFET drivers, if I use only one MCP there should not be much trouble as it's a monostable and not another demanding kind of application that requires frequent charge and discharge such as a waveform amplifier. Still, the input capacitance of each of these MOSFETs is quite high (14,000pF) and I'm afraid MOSFETs get hot in that active period of time, but if slowing things down helps to avoid the effect of layout hidden inductances, I'll gladly do that.
Is there a thumb rule to check inductive transients in such circuits? Sorry for the dumb questions.