I scored a left handed Abu Garcia Black Max with Flipping switch on Fleabay. It needed a good cleaning/greasing/oiling. As I was finishing up, I stupidly dropped it. It landed on the flipping switch lever and it busted off a tiny tit inside that it rotated on. Of course it is discontinued and unavailable. It is a simple little thumb lever, that activates a spring-loaded tab, that locks out the thumb bar. Thus, the 'flipping switch' that allows the reel spool to unwind as long as the thumb bar is held down. When you let go of the thumb bar, it goes back into gear, without having to turn the handle of the reel. I call it the 'Fluking switch' as you drop a lead head or sinker down a ledge or hole by just pressing the thumb bar. Abu Garcia invented it, others copied it, it was all the rage for a while, now it is a hard feature to find. Especially in a left-handed model.
At first I figured I would get a rod, drill a hole, and solder it to the tab. It measured at .100" thick, about .125" long. There is also a tiny square tit that slides in a slot to limit the travel. That is fine. No rod that I had fit exactly. But I did find a tiny machine screw that screwed into the hole in the plastic body like a self tapping screw. I drilled a hole in the tab where the tit busted off so the screw would act as the tit. I made it so the screw was a firm fit, but could swing. So while holding the tab with the spring attached, I was able to screw the screw into the hole and tighten it down, holding the tab in place. But it interfered with the side plate. I used a drill to hog out an indent that the screw head fit into. Now the side plate fits, and everything works.
Why bother you ask? Because I wanted a left handed reel with flipping to use with a one handed pistol grip graphite bait casting rod. This is strictly a very shallow water, light line, lead head twitching set-up. You would not believe the amount of Fluke that feed in water between 1 and 3 feet deep. Sometimes you can see them fight over the lure. This way I have a short, light, rig that I can work without banging it into myself. Close quarters. See pics. First shows the busted tit, and the screw that replaced it. Second is the rod all rigged up.