Has anyone tried one of these? https://www.ebay.com/itm/142913022120?hash=item214647a8a8:g:SnMAAOSwkDtgFxgW&LH_BIN=1 I want to pair it with an Arrma BLX100 ESC in a DHK Hobby Wolf buggy. I need something like this with a 3MM shaft, since the only spur available for the Wolf is 48P, and finding 5MM 48P pinions gets expensive quick, if you can even find them.