I am unconvinced by this - I have razors of different weights and am not aware of applying different pressure for any of them, at least not because of their weight. When using a sharper blade, or a more aggressive razor I may use different pressure, but for a different weight razor, I say no. All other things being equal, I consider that the razor weight has no bearing on the blade selection. Must be one of those YMMV things
It means that I would not apply different pressure for each razor; you may, but I would notSo, does that mean a 10g razor would shave exactly the same as a 100g razor with the same geometry?