Resisting Cree's vs. Rebels

[Gnar-Gnar Gin]

So I know some people prefer not to resist their G, C, and B rebels when running a 3.7 battery,

Anyone have an opinion on the same with Crees? I'm wiring up the green and realized I'm out of resistors... wasn't sure if crees were more finicky or anything

[Forgetful Jedi Knight]

Crees are actually a little more robust. But with that said, it's usually "safer" to put at least something that resembles a resistor on it. A sub $1. resistor is a bit cheaper than a $20 LED.