You are a wise grower. I have read too many post about sick plants with a list of 5 or more different additives they were using. They were clearly either burned or had nutrient lockout and most answers recommended adding something else to 'fix' it.
On my last grow I switched to GH micro(1 part) and GH bloom(2 parts) all the way and only added a little GH Coolbloom in flower. My plants were very robust and healthy. I would have stayed with the NovaBloom but I need to use a syringe to inject the nutes into my res and I couldn't with Nova since it is thick as molasses.