YES! DO IT NOW! If you're running blinky, your not losing out by going to the 4.7 software.
I moved to LRP ESC because of the braking power on carpet -- as I really needed the extra power to get the Awesomatix slowed down on a super tight local track -- Critters RC.
This is my first season running LRP outdoors -- previously I've run everything else
. Semi-XBrake really helps me prevent wheel lock on asphalt.
I want to try BD3 again -- but haven't had the time. It provides the most direct braking...