Quoted from Lermods:I put neoprene washers under both my wonka and potc sling posts that I bought at Lowes and hand tightened the posts down. There wasn’t any damage before I did that, just for protective measure. So far so good. But man, it’s very disappointing to see some of these issues and I hope some response on the cause and a resolution will be coming. The silence just makes people madder.
fiber washers are another good alternative. they are not that thick, but would provide a small layer of compressible protection between the playfield and the post. I would also recommend sanding the bottoms of the posts (many of them still have a small portion of the injection mold sprues attached to them
what's interesting is that bandai has completely changed the way that they injection mold their model kits so that the sprues end up on an interior edge that is completely hidden and doesn't come into play for mating parts
https://www.amazon.com/vdp/65f2a331a0f147559156b29f93018035