I don't doubt there's a tangible difference, but for me there are two issues. Writing off the CSL Elite after 5 or 6 months of use just seems silly, and secondly, the bigger issue I have is the consistency of the CSL Elite Pedals. The load cell design seems to cause me more problems than anything else. Hopefully there's a Podium series pedal in the works that fits the bill. Otherwise I'm kinda leaning to spending on a set of Heusinkvelds.
I am so used to the csl elite pedals, that i have kept them.
If they break someday, I'll think about buying Clubsport V3, but i like to brake using the pedal distance (csl) and not pressure/force. (v3/loadcell)
Hope you guys can understand what I mean.