hi glemon,
yes, I know the 100 doesnt have one as stock, I know DW sells them, although from memory there are other suppliers, its just that I'm sure I read somewhere that there are different types, ie some are a moulded rubber bush setup while others have a "wet? silicon? fluid? encased bush", its just not something I have spent too much time researching, and I thought some on here may have come across different setups, or maybe old age is catching up!