I have Used both the MA Systems ROTO EASE and EJECT EASE, My 2 is that they are hard to keep in adjustment and not very reliable. the ROTO EASE must be attached to the same surface as the Star reloader which is not very handy if You want to move the star reloader. it has a hard rubber component on the flex arm that gets brittle and breaks easily. I would suggest the MOON UNIT instead.
The Eject EASE is a little more dependable but is made from bent wire and one small bump to the wires may cause malfunctions.
Sorry to be so negative about these two items, but I never really liked their performance.
Good Shooting
Lindy
PS I have Manuals for both