Wow. The RAM works really, really well. Just as advertised by APEX. So nice to have a product work perfectly. The trigger return is not a kick in the pants like a GLOCK which I find distracting, but a nice, solid click that has a similar feel as the sear tripping the firing pins. So pull on the trigger and click, the gun goes bang. Then release the trigger and click the trigger is reset. Perfect.
Make sure your trigger bar is smoothed up on the areas that the RAM exerts pressure otherwise with the lightened trigger return spring you might not get a reliable reset. I had to take a honing stone to the right side of my trigger bar where the RAM contacts because it was very rough like the edge of a broken cracker (the kind you eat with soup, not a drug addict!). Since S&W never intended the right side to contact anything, I guess they did not feel it necessary to smooth up that area. I used a fine white honing stone and smoothed it up.
My RAM did not include any instructions, not even a reference to a YouTube site. But you should be able to get information from a search on the web. Basically, take out the sear housing, put spring onto RAM, insert RAM/spring assembly into the left side of the sear assembly. The flat part of the RAM should be facing upward. Reassemble, noting that the tail of the trigger bar should easily slide into position, in the flattened part of the RAM. If it does not insert easily, rotate the RAM and slightly insert/compress the RAM to fit the trigger bar. Don't forget to reinstall the roll pin and test it out WITHOUT bullets first.
The gun is now just about perfect! Time to go shooting.