Like you, I recently got back into racing after a few years off (20 or so). I started back using my Optima Mid with the old brushed motor and esc. I did stick a Lipo pack in there with a power cut off to protect the Lipo. The improvements on the battery was massive compared with the old NiMh's that I used to use.
After a few races I upgraded to a B4, which I went brushless with. This made such a difference and made the car more competative. I have recently upgraded again to a B44, which has Lipo saddlepacks in. All the above was done using Tamiya connectors. During Sundays racing I noticed that the connectors were extremely hot and could have melted, like other racers are indicating.
I hope this helps your decision.
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Associated B44.2, Nosram Pearl Evolution ESC, Fusion Exceed 6.5T , 4200 Lipos, Savox
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