What is the optimum plate size in relation to container size. Is there a formula to determine? I've seen cells with plate sizes ranging from 2.5x4 all the way to 5x8 - all in a multitude of different sized containers? All claiming the same or close to the same HHO production volume? What would you guys say would be a good ratio plate to water?

I've also seen the same with hoses? Some use quarter inch tubing others 3/8? with the same sized cells? What do you think?