I currently have the 300g and want some back-ups but considering they are discontinued they are difficult to find at a reasonable price. The new m-fil 300s are comprable in price to a used 300g. Has anyone recently switched from a 300g to a M-fil and if so how is the transition and what are their comparisons and contrasts? Any help would be much appreciated. No where around me sells dunlop or I would demo.