I run my thunder un-modded, with the mono jack without a startup cable using t-tech and cx1-v2 critical ps and have absolutely no issues starting it at around 6v. I cant see the reason for the start-up cable unless it is a power supply issue? My ps starts the Cheyenne carts at around 8v (and I would never even use it below that voltage) with no problem either. So my thinking is certain power supplies have an issue starting the thunder at lower volts, right? But that is also what has me puzzled. See everyone says that the motor isn’t any stronger than the maxon 216000 and that its about it being dd as apposed to linear w/give, etc., that makes the difference in the feel of how it runs. That this is what somehow makes the power feel different. Then why is there an issue with certain ps starting the thunder at lower volts? When say the spektra direkt has no issues in the same regard, (that im aware of)? I genuinely am just curious and confused as to why the thunder has an issue starting at lower voltage, especially if it being a dd like the direkt, (which I use as example just because they are similar in function/motor) why there would be a difference if the motors are similar in torque, cps, etc., and are both dd machines?