Right so the two big "hacks" for getting a bigger lift on the bench is the back arch and leg drive. Back arch is a separate issue here but I wanted to talk about the leg drive really quick.

I've always struggled with this part for some reason. I basically somehow "forget" to engage my feet after a few reps and just lose it. So I've been trying something weird the last few weeks. I drop the weight down to just a bit above warm up weight and let my feet "hang". So I'm basically using my core for stabilization and no legs.

This is probably hurting my chest somewhat because I'm not lifting as heavy weight, but I really feel like the core engagement is helping my abs. Thoughts?