Pushing from the full depth FEELS like it's exponentially harder. Pushing back out from wherever I am here (~120°?) is SO different from pushing from ~20° (arms fully bent). That's asking a LOT of your triceps!! The leverage from there is just so nasty. Plus it gets really hard not to arch your back hard to try to find more leverage.
But I'll see if I can give one a try next week. Not optimistic though!