Eh not really sure, I think my electrical system is out of wack and not tuned up correctly. My cc bec went bad so I took that out, my Rx was close to taking a ****, my transmitter rattled from pieces broke inside, motor was pretty rough (before rebuild) my drag brake isn't working. I believe I can change stuff on the brxl with a castle link right? Should I order another bec? I know the brxl has a pretty good internal one but not sure if it would help if I put a new bec in? I guess I'll see when I get it all out back together and excited to try out the 4pl. Still lots to learn ha trial and error.