I have seen people post about one particular model and those usually compare them with the previous model. What I would like to see is some comparisons about how the tridents are different from each other. So if any of you have any experience with more than one (preferably all four) let us know what the subtle differences are between them.
I own three of the Tridents. MGX, Helix and Eupho. I love them all. I don't have the balls to try the Maximus yet, but would consider in the future if I'm feeling bold ;). I'm sure others will have better input than me, but for me, the main difference is the feeling of fullness. My MGX is largest, so I'll use it when I am craving something a little bigger. The Eupho is the smallest width and provides the most movement. It took me at least 6 or so sessions to really learn it though. It almost felt as if there was nothing inserted at first, especially when compared to the MGX. While there may be a learning curve with the Eupho, it is definitely worth the practice and patience. All three are amazing and I literally can't pick my favorite!