Pinging on acceleration.

But the yellow marked double-notch on the balancer is the TDC mark......
Look REAL close on the balancer where the arrow is pointing. There's a hash mark. I'm almost positive that's the correct mark. If the balancer has been replaced, it will have two marks. All of them I have seen do. One mark for each timing tab position. Of course he won't know for sure which is correct until he checks TDC as he's been told. If he'll do it. You know how that goes around here.