bikeworkshop
Senior Retro Guru
I only ever got it with Shimano rings. Personally I stopped it by never running Shimano rings (which were overpriced and made of a silvery material with the properties of Dairylea).
For everyone else, I imagine that Shimano corrected some of the design flaws.
There is a big difference in quality from shimano running from (cheap) heavy but strong steel through soft as cheese aluminium up to (expensive) light but strong heat- treated aluminium.
Those mid quality rings are poor for long term use.