are you sure it was the nozzles?

You are running a medium droplet size at what you run now.

We have used a course to very course droplet for years (turbotee's) and have not had a  problem with kill but in the wheel tracks.  you use anything with the glyphos?

I just bought new tips for the Hagie we got and got the AI turbotee's and like them better than the plan turbos.  have done burn down this spring and killed everything.

I would look at the other things before the nozzles.