I am in the market for a new charging setup. I am confused on what to get. I am looking at the protek prodigy 640, protek 1200w power supply and the parallel board, or a HITEC 4x charger. I have used and owned a HITEC 4x before. Loved the charger and the ability to charge 4 packs at once. What I didn't like was the amount of time it takes to charge. I use 5000mah 2s lipos. All of my packs will be the same. I run two cars on race night. My concern is, with the parallel setup I will not be able to throw a pack on after the heat so it's ready for the main. We run a very fast race program. With the HITEC I can have 4 packs all at different levels of charge. The parallel must all be the same and all charge at one time. Am I wrong on this?