Tried board presses for the first time to address the above. Not a lot of available boards at the gym so I went with a yoga block, probably 6" or so high. Probably not the safest approach and definitely pretty strange to look at but it seemed to work. I guess I could have tried stacking towels as well. Wasnt able to move that much more weight off of the yoga block vs. the paused benches off my chest, sort of surprised.
Seems like it really activated my upper back, near the shoulder blades, does that make sense? I assume that at the lowest part of the bench you are primarily using your chest and at the top, primarily triceps/biceps. Not sure about this part of the bench, sort of in the middle.