I've only had one experience with a Motion Pro clutch cable, but it will be my only experience. Ever. Granted, I'm probably some anomaly and 99.99% of them are great, but I received that ONE cable.
I just installed it and was out for the first ride. Everything was seated and adjusted as it should have been. As I was sitting at in intersection, my bike started creeping forward uncontrollably - I couldn't stop it! Thankfully, the light then changed and I was able to just drive away. When i got home, I found that my clutch cable was REALLY slack. I tried to take up the slack with both adjustments, but even with everything adjusted to the mas there was way too much slack left to be functional. It felt like the cable stretched during the first ride, so I was out of commission until my new genuine Honda cable arrived.
I use many many MP products and they've all been fine. This is the one negative experience I have with them, but I will never again buy a non OEM clutch cable. Sorry for the long reply. That's what happens when I have a beer!