Ok so I am trying to find bumper guards/grommets for my Dunlop Hotmelt 300g. Mine are a little beat up. I can't seem to find them on the grommet section on tenniswarehouse and anywhere else. I've heard that the Dunlop Aerogel 4D 300 grommet and bumper guard fit the 300g. Does anyone know if this is true or where I can find some for the 300g?