2 destroyed starters in a row...WTH?

Dusterdenovo said

Timing was 10 or 11*.

I checked the TDC with the balancer when the engine was new, but yes that should be checked again. In hindsight maybe I should have done that after the first failure.

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I've mentioned it before, and maybe you've already done this, but when you are assembling an engine and you are dialing the cam in, or even just checking TDC marks, After you verified the timing marks on the dampener, you should match-mark the inner & outer rings, so it can easily be visually checked in just a minute, if not seconds, with no tools necessary.