I have the spektrum 160a 1250kv combo in my Notorious and hobbywing max6 1650kv in my Talion. The firma is the model with extra cap pack. I have 1 of my dx5c tx on the Notorious for the telemetry with smart lipos. I honestly like how that whole system works. Easy to monitor battery level and esc temps while bashing. It's great to have in summer temps. I'll put my other dx5c on my outcast 4s and go spektrum electronics as well. I think it's worth it. I won't swap my max6 1650kv and futaba 3pv setup from the Talion, but I recommend the spektrum setup for anyone wanting to monitor what's happening with their rig. Also... my max6 power button smoked today... taking one off a dead Firma 160a to replace it. Either can give you issues but both are solid.I’m planning on getting a dx5c transmitter soon and was wondering if it is worth it to get the spektrum 160a esc over the mac 6 esc. Performance wise is their a difference between the two?