@jimijam The A-T AT607a
l have one from the 80s and it did a good job with all the MM cartridges l used. The stylus cleaner was well made and it’s bewildering why such a successful product should be discontinued.
l stopped using it after l moved to MC. Dynavector advised not to use these devices with the 10x5 l had just purchased. I believe it was mentioned in the manual that it was not recommended and could damage the cartridge from the catalogue.
If this was true for all moving coils, then perhaps this resulted in falling sales, and was one of the reasons for withdrawing the accessory.