Changing things up a bit, deans might be ok. But anything heavier I'd go to a bullet connector. After several hours of post race maintenance I've replace a bad bearing in the rear diff which was causing significant drag. I changed the wires from my motor to ESC from pig tails with 6.5mm bullets on either end to solding them to the motor wires and leaving bullets on the other end (reduced number of connections).
I can't hardly test anything yet because I'm waiting on my MMM cases from castle. My MMM case broken somewhere during the 20min main and my ESC was flopping around only hanging to the vehicle by the bullet connectors. I'm amazed it got me through the race. The fan is long dead (RIP).
Has anyone done any digging on where to find a 30x30x7.5mm 5v fan? the 7.5mm thickness makes it a very odd size and I haven't been able to find much for anything less than $12 each. These things shouldn't run more than $5