Had shifter cables replaced and BB cleaned and regreased on my Cannondale SuperSix. On crank over most noticeable on left side at about the 7-8 o'clock position I hear a ticking noise. Very loud and noticeable when more load is on the pedals. Eliminated headset as possibility, eliminated shoes/cleats (it does the ticking when I am just pedaling around my driveway with my running shoes on). Sounds like something is literally tapping carbon with every pedal stroke. Totally quiet in the stand. Only shows up when any kind of load is placed on the pedals. Inspected Speedplays for potential issues.

Any advice where to begin? Like I said, it was never an issue until I got shifter cables and BB service last week.

Thanks.