The next one

In the case of my six cats, yes it was.
Projectile and they had not even finished eating the food.

I'm not sure if I'm that satisfied with the results.
I may continue this a little further.

I know what you mean, Peg.  There could be a thousand different things in there.  But at least you know the main ones that have been causing the most damage & death aren't in there now.  From there, who knows what would be best to have tested. 

I think you saw the FF thread, but we were discussing different things to possibly test for on that one.  Maybe you can get some ideas there.  I wonder if Dr. Angel vet might make some suggestions for you, off the record?

EricV - there have been two separate rounds of cats throwing up Wellness from those of us here that are using it (see the main Wellness thread for the list).  Many of us are wanting to find out why.  Toxins, imbalanced supplements, pH off, who knows what it could be.  Peg has taken on the expense to try to find out if something is wrong, thank goodness!

Any ingredient that might cause projectile vomiting right after eating it? 

The tests that were run wouldn't show everything that might be a problem, just the ones that have been found this past year to cause trouble.  I'm sure there are plenty more that haven't been identified since symptoms keep coming up that are different from those found during the poisoning last year. 

It's kind of a guessing game figuring out what the vomit-producing thing could be and have the tests run for it.  Expensive too.  If it had been identified earlier in another food, that would make it easier.  The vomit-producing toxin mentioned on the cat vomit thread sounds like a good target, Peg.  Maybe have pH tested too?

Eric I tested the food for the sake of my cats and decided to share my results with all of you.
I did this at my own huge expense.
I am not disappointed they didn't find anything, just a bit leary based on the "non-detected" vs. "none detected" and the fact that the test results do not give you a ppm basis.

Eric, I fed one flavor in the morning and all 6 cats experienced projectile vomiting without having finished the food.  That evening, I fed a different flavor and all 6 of my cats experienced the same projectile vomiting again.  As it happened, I was on the phone with my vet about unrelated matters and I told her what happened.  First words out of her mouth were, "It's the food".

Eric, Any ingredient, imbalance of ingredients, contamination from improper canning or some of the mycotoxins which can survive the canning process.  My cats have also been eating beef since they were kittens, the oldest is now 13.