Question about late first outdoor grow

Hi everyone!!!
It’s been awhile since I have posted. Basically, I have a feeding question. I am in zone 5. I started my first outdoor grow with the feminized seeds I got from ILGM about a month, to a month and a half, after I should have; due being in the hospital. Then I finally got my seedlings outside way after normal. They are growing well but still on the small side. I was hoping for atleast a few more feet of growth before signs of pistils. But, they are already displaying them. Sooooo, my question is, can I combine, Grow Big and Big Bloom with heavy feedings to maybe give them an extra push of growth without burning them with to much food? Should I continue to “Topping them” to get more branches of growth or leave them alone now that they have reached this stage?

Stop topping as they are flowering. Give your nutes as you would normally. You can’t push mother nature and win. Good luck!