Check with Granatelli; but I'm pretty sure the those coils dwell with high signal, and fire going low. This assumption is backed by your coils getting hot. You may have fried outputs or coils, so I would test both to check before trying again.
When testing the coils again, I would enable and use Hardware Test in TunerStudio for single test firings. You can test manually like you did before, but it's not the contact high that counts, but what happens when you break the connection to the trigger terminal. This is one way to avoid being tricked by contact or "switch" bounce, and physical contacts inevitably give poor initial contact such as shown by this:
This contact bounce can cause a spark at any spike, making it seem like it's firing going high. Even quality switches have contact bounce. So, use a hard contact material to test (not a frayed or stranded wire), apply the contact to the tip-edge of the terminal (it may spark), and hold for a moment to ensure there are no more sparks. Then cleanly pull the contact off the terminal without rubbing or scraping.
If it sparks, the coil is working, and it fires going low. If it does not spark, repeat the test, and if no spark with contact on or off, the coil may be toast. Contact Granatelli for further testing instructions. If no joy, post again here.
Of course if you use Hardware Test, and your outputs are working, it will be a clean make/break for definitive testing.
Don't stress your coils with more than a few sparks either way.