I am trying to thing about how it applies to how I brake. I know I definitely rely on my front brake 70% or more as you suggest. I tend to keep my foot off the rear brake until I feel the weight start to shift forward, then tend to apply just enough rear brake to counter the forward shift.
I have only had to make one emergency stop so far and luckily it was on dry pavement. Generally everything went well with the exception of jolt at the end. I am guessing a little too much front brake at the very end. So probably if I had to self evaluate I think I am not using enough rear brake in quick stops? I know thats the one hit I had during the MSF course as well. Did a little bit of a “stoppie” on the emergency braking from not applying enough rear brake.