I've just done the mod (really no tools needed besides torx 20 bit, press the pedal in and lift up the top off the hook) and test driven mine. Can't say the difference is all that noticeable (still stalled it once, damn it, CDV already removed). OTOH, I have no idea why VW bothered to add the spring - it seems to serve no purpose other than adding up to the weight of the vehicle. I don't know that an average person would even notice increased clutch pedal resistance. I've never understood folks that complained on heavy clutch anyway but I do pity AT drivers that have to constantly presses on either gas or brake pedals while I'm relaxing in heavy traffic (well, sort of - I just curse them all