I was trying to remove the broken stub of a bleed nipple from the rear caliper on the GS at the weekend. Drilled the middle to get to clean metal and used an EZ-out to try and remove the remains but the tip snapped off and is now firmly fixed in the bottom. It's chewed up two titanium coated drill bits in a pillar drill already - any ideas what I can use to get the bit of EZ-out out or is the caliper now well and truly knackered? All is not lost as I have sourced another off of E-bay and I have a good one off of my donor GS. Just seems a shame ot write of this caliper as it was otherwise pretty tidy.