It almost appears that the spring that was on is not the correct spring to work on the 302 carriers? The pedal feels so spongy and all I've done is change the disc the caliper carrier and the pads? The spring only fits one way so I'm kinda scratching my head? I think I might check the pistons are not sticking but I can't see why they would as the brakes although extremely worn were ok up until today's upgrade?