Laitch the great et al:
So, if I understand why Brickmeisters succumb to "trajecto traborgs" its a combination of the ( Pan....french word for bread box I prefer to the Deutsche though not allowed here...) lifting AND then sliding back. My take is that Martin's ingenious block though functional only addresses half the wear problem. If it clamps to the rack in doesn't slide back. So I score this a 5 of 10 on the Kluge index with 0 being- to buy two new components, $220 and 10 being a few wraps with baling twine. My fix is a fix at best and not something I'd want to explain to a concourse judge at Pebble Beach

Anyway, this fix looks effective. So I devoted 90 minutes to plastic welding one of MrTenBrook's worn our components ( why experiment on mine, right?) and I

the repair will work.
Plastic welder Amazone $130, is a hopped up soldering iron with a powerfully hot high setting and a spatula end for spruging (technical term) ABS plastic in the form of USA sourced zip ties from Summit Racing. Is all Chinese ABS on par? I

...ok perhaps...
So I spread the plastic like a welding bead. Where not molten it let go when worked. Rough shaping with a Dremel sanding drum. Flats leveled with a fresh sharp rasp.
Mom's calling me to dinner. One wheel repainted, center stand painted and ready to install. Lock tight?