I removed my bleeder valve earlier today. (I removed the spring a few weeks ago.) Simple enough job, thanks to the instructions provided here. After a 15-minute test drive, I believe I notice a difference. I think it is particularly apparent as I release the clutch pedal. For lack of a better phrase, the clutch engagement seems more precise. I'm definitely happy that I did the mod. That being said, if someone else had done this to my car without my knowledge, I wonder if I would notice the difference???