Had many concours and current '12 seemed to eat front pads early at 16,500 miles. Bought ebc pads on amazon and changed both sides in 30 minutes total. Easy peasy. Bedded them in and stops at least as well as stock after my first ride.
did you take the time to completely clean all the grime and gunk from the pistons and assembly before pushing the pistons in? big mistake if not...
this is an easy bike for front brakes tho, but with any brake service, there should be meticulous cleaning involved, not just popping in new pads.
ride safe,