Anyone here done this? I ordered the brake spring yesterday to give it a try. Although I find the brakes "okay", I do think the transition from light to harder braking a little too abrupt for my taste (no doubt the effect of making contact with the rubber insert inside the standard brake spring). I've heard that the pedals are calibrated out the box to account for the reduced travel due to the rubber insert, so have a 12mm piece of rubber that will act as a stop once 100% travel is reached, with the increased pedal resistance through to full braking coming from the progressive GTEYE spring and not compressing the standard rubber insert. I also intend trialing the firmer clutch spring (swap over) on the accelerator for better feel. Hoping this will improve overall pedal feel.