How does yours fit on the Makita track? I've had mine about a year or so now, and bought a 3m Makita rail, then added a Makita 1.5m rail. I found the Makita rail is ever so slightly narrower than the Erbauer rail and when new the saw would only just adjust enough to snug down on the guide. Now its had a bit of use (granted one of those uses was with a diamond blade to cut about 50 patio slabs to use as cap stones!) the adjuster things have worn a bit and it's a bit loose on the Makita rails. I can't find any spares for it, at least not readily available, I may email screwfix and see what they say. I'm almost tempted to buy a 3d printer (and learn how to use 1!) and make some myself and tweak the dimensions slightly.
Oh and for a while I was using the duct tape over the hole trick to help dust extraction, but by luck I came across these Hey, I found this really awesome Etsy listing at
Erbauer Plunge Saw Dust Cover | Etsy UK. A 3d printed cover for the erbauer. So it shows there's a bit of support in the aftermarket, but I can't find anything for the adjusters.