There definitely is a difference of clamp force, but maybe the variation is between each individual product and not between different models.
Between the 3 that I had, the Stealth had the most clamp force, followed by the V2 and then the SE. Weirdly the SE was looser on the bottom than it was on the top of the cups.
Between the 3 that I had, the Stealth had the most clamp force, followed by the V2 and then the SE. Weirdly the SE was looser on the bottom than it was on the top of the cups.