I have never had an discharger other what is built into my chargers. The discharger in my 406 Duo is sufficient. I put my batteries into storage when I get home from a day at the racers and it takes less than 20 minutes. People typically get the large resistor banks to cycle their batteries at extremely high current in order to heat them up before a race. The hotter the battery, the lower the internal resistance which results in slightly more punch at the beginning of a race. Personally I've never done this because it shortens battery life.

It was an easy question, and only required an easy answer. Unfortunately, that did not happen.

And yes, the search function on this forum is bad, much worse than most - I can see how new people could be frustrated.

so just my personal take on all this.. no one cares.. but its the internet so im gonna post it anyway haha..

he makes some good points i wont try to detract from.. lipo chemistry prefers a warmer temp and the rapid charge/dischage thing is a thing.. it will make your batteries have more umph. i think the cost isnt such a thing up front cause discharge banks and that charger are kind of a buy once/cry once proposition.. they will however shorten the life of batteries so if you dont care about spending hundreds every season on the best/newest batteries.. all the more power to you.. if you want to get a couple seasons from $100 batteries.. maybe you wont do this.. up to you.

similarly with motors. i think that 5-6amp rule needs to die.. i hear it all the time, but several motors have come out even since 2017 that kinda differ.. old motors 2016 ect really seemed to work well with this but newer ones have been all over the range.. if you are going to buy the motor checker at all.. every single motor you take out of the box should be tested through its entire timing range beyond 30º i think.. you need to make a chart and graph the rpm/current use and decide for yourself based on your own driving style which works best... higher current draws will typically benefit those who dont know what brakes are i find heh. brakes in stock.. who uses brakes? cant explain this to everyone.....

i think weight distribution is a HUGE deal... car setup and driver is always a huge deal.. not sure how much of a fire i want to se haha...

im not a national champion though. my rc experience is limited to canada.. im sure you US guys are just.. better. one day ill come down there and thrown down.. im sure ill lose.. but thats ok too.
where i live racing means setup/teardown ect so tracktime is quite limited. the people who have access to the unlimited tracktime definitely have a stronger voice.

High current charging/discharging is indeed a thing. Knowing Jilles Groskamp he does not charge more than 2C and never discharge with high currents (not at the track that is...) and still he is almost in every A main final and winning big races w/o any of those stupid battery waisting high current charging/discharging crap.

So yes, that says a lot of the need of high currents and the skils of setup and driving.