Remove default scaling of the system. The scaling doens't seem to help actual solutions. One example that fails in the flexural code. With large timesteps the solutions seems to blow up. One particular example is profilePresentation on the tdb_presentation_figures branch with k = 0.0005

classdef Mapped < grid.Grid
    % General grid mapping
    methods (Abstract)
        % logicalGrid returns the domain grid of the mapping.
        g = logicalGrid(obj);

        % mapping returns the mapped coordinates as a N x D component matrix
        m = mapping(obj);
    end
end