Yeah i have an ammeter gauge hard wired in under the hood for now. How long does it take for it to warm up ? I thought once you hooked up the positive the initial amps it uses is what it stays at. I now beginning to understand that if I start the vehicle and it says lets say 10 amps doesn't mean it stays at 10 amps. Once it warms up it might be 20 or 25 amps. If the 19 plate you talked about with the 5 neutrals in it will produce more hho at lower amperage and heat that is where I should put my attention to instead of my 21 plate design. just for my peace of mind of understanding more,

With a 21 plate 4 neutrals it will take less KOH to make hho but more amps to make alot
With a 19 plate 5 neutrals it will take more KOH to make hho but amps are lower

Did I just learn something ???