I've had some low back issues in the past, but this exercise takes that out of the equation via the chest support pad. It's a safer way to work through the entire range of motion.
Adding bands provides continuous tension which increases the intensity in the contracted position. Give it a shot!
Sometimes it's really interesting to dig into the microscopic details of training and nutrition, to dissect the body of academia and examine every little study. That's how we learn things. That's how we refine the science that later helps us get bigger and stronger and leaner.