Recently my customers have been complaining that the size of my bar soaps could be adjusted and that it is a little hard to use at first. Until the edges wear off and it melts down to a rounder shape. Dimensions of my soaps are 6 x 6 x 4 cm / 2.4 x 2.4 x 1.6 inches and weigh about 100 gr / 3.5 oz. They look very similar to this pic. Maybe just a bit wider. Is this something I should be concerned about?