A hot key to put in a ease of a set keyframe velocity, or the ability to change the default velocity

Every project I use ease on key frames, I never want it to be the deafult 33.333% in my opinion it's ugly. So I'm manually changing this value to my preferred 70% every single time. It would save me and the whole community a lot of time if we could have a hot key that sets a ease key frame to you preferred velocity. Maybe if you press F9 twice it'd turn the deafult linear key frame to an easy easy with a velocity of 70%.
Or even just give us the ability to change the default keyframe velocity in prefernces or something.