@LidPhones what is the deal with the surges? I used to think they were a precursor to nosedives, kind of like an early warning. But since I put in two-x upgrade (into my plus) I have yet to nosedive at all. But, I can still get it to surge, albeit a lot more rarely, when going up steep hills for example. the upgrade felt much more powerful at first but I got used to it pretty quick, now I find I'm back pushing the limits again, even if they are higher limits.
But I can def find those limits and occasionally it will surge. But so far never leads to nosedive even if I keep pushing. Maybe I'll get a darwin award when I nosedive my two-x by oblivious surging ;)