Another 4wd v5! Welcome to the club of all three of us.
Excited to see you push your v5 to the limits.
That rear binding placement is wiiiiild… My foot is nowhere near that high up on the kicktail when I’m racing! What made you put it up so high? How does it feel while racing? Is it stressful on your feet?
Looks like the batteries hang in the velcro loop “slings” while racing- makes sense that they’ll pull the velcro off the board in the high-vibration environment.
What I recommend is putting some adhesive foam on the batteries or bellypan (either works). You can get all kinds of thicknesses, pick some that will compress a bit when the bellypan is on. This compression will hold the batteries in place (the foam will also keep them from rattling). Here’s where I did it in my thread;
Sounds in line for what I’ve seen for 2p HRB’s. Still fast af though! 
