[Juevento]

Yeah there is rough an order of magnitude difference between Pa and psi.

Any time I have to think in metric I find myself doing mental conversions to get to the relevant english unit. 1mm = 0.039", 2.54 cm = 1", N = whothefuckevenknows lbf. I think one of the stupid things about metric is that the mass term is extremely prevalent, whereas with imperial units you deal more with weights. To me that's one of the reasons it is more useful for everyday (earth-based) work.