I've loaded over 200,000 rounds on my Star since 1986. I have the Hulme case feeder,MA Systems case collator, MA Systems shell plate rotator, MA Systems bullet feeder, MA Systems Ejector and MA Systems Roller ease handle.I have had zero problems with any of these attachments or with any wear on my Star mainly because I do not size or decap on it. The only replacement on the machine was a primer slide spring. Star Machine Works recommended MA Systems products to me when I purchased it and it is fun running a fully progressive Star. It still looks like the day I received it.