I have thought about if I had to modify my current bush it would be to have the whole setup 1 cm shorter as the type of knot the brush has is shorter where the extra length other brands use is not needed by this company as the length is the only flaw but almost all of the travel shaving brushes are the same length and diameter to have a bigger brush size/taller bristle length with one or two exceptions on one of the two Muhle models and a Merkur where the diameter of the handle is bigger due to having a huge size knot.