Arcad35pin

Hi all, I am trying to direct my Mame emulator setup to different controller types (*.cfg) like with retro arch (ex simple -L "cores\*.dll" -c "config\*.cfg"). so under my edit Mame /associated platforms/ default command line parameters/ what line would i place here? Also would moving the default emulator tick between the two *.cfg's be all i have to do? Why i am asking this, is that at the moment i have two copy's of Mame setup, one that i use my game pads on most of the time & a 2player joystick/spinner/trackball setup that i get out when i have friends round. i do not have my emulators/games in the lunchbox folder but are located on same drive. many thanks.