After having used just about every other RAM on the market and not ever really being happy with any one specifically I decided to polish an STO RAM myself. This worked fine for a while. Then I saw this at my local pb shop and decided to give it a whirl. After just taking it out of the box and moving the rod in and out a few times I could tell this RAM was even smoother than my polished STO. After setting it up on my marker the first thing I noticed was that I was able to lower the pressure on my front LPR. This resulted in an even more pinching effect on paint caught in the feed tube. The speed of the cycle was also increased. I was able to get about a 2 to 3 bps increase on my marker just from the faster cycling rate. The one thing I did notice was that I had to retime the gun from scratch as it had a shorter stroke than my STO but that wasn't a big deal at all, especially if you know how.
This thing is incredibly smooth. If you have the money to spend get this RAM. It is by far the best on the market. Their is simply no comparison.