Why not disable the BEC and run a RX pack? As Chris said, the problem is the BEC dipping voltage to the RX- effectively shutting the system down. This explains why the truck was "stalling" when landing jumps- the excess strain on the ESC to get the truck up to speed depleted the BEC voltage to the RX and "stalled" the truck.
FWIW, it's not just when landing jumps that it occurs. Its all the time.
Anyway, I think the reason he doesn't do that is because he shouldn't have to. Its never functioned since new, and should be replaced by Novak now, not just another stab at bench testing/repair. And on the old EMaxx chassis, there was a serious lack of room for another battery. Now on the FLM, there is room to do that.
Losi 8T 1.0, Savage Flux - XL style, LST XXL, Muggy, 3.3 E-Revo Conversion and sitting outside 425hp, 831 Tq Dodge Ram Turbo Diesel. It SMOKES
i went through the same problems with my hv pro, after 3 returns to novak and it still didnt work, i decided i would never buy another novak product again.