Safe gearing for 6s on Flux?

Ok, after thinking hard about this, I really wanna try and experience 6S on my 2nd Flux. My first Flux did have plenty of go with 2S 6000mAh 28C SMC but now I wanna see first hand what 6S is like on this bad boy. After much research and forum searching, im aware that dropping the pinion gear down a few teeth will help reduce strain on the Lipos and reduce heat on the ESC and motor.

I plan on getting either one of these for 6S power. Any input?

http://hobbyking.com/hobbyking/store...dProduct=11939
http://hobbyking.com/hobbyking/store...dProduct=12936


Should I change my stock gearing from the 20/44 and go to 18/44 or should I go even lower? I wanna be able to still go faster then 4S at 20/44 but I don't wanna blow my ESC either cause I will be driving in variety of conditions while bashing and jumping.

Thanks all for your input and patience my last few threads, I just want to make an informed decison

[TexasSP]

Best bet would be to gear for around 50 mph. Make sure and use Brian's speed calculator and enter in tire type and ballooning. You can gear up for speed runs but constant use of that gearing will increase heat.

[JThiessen]

You've already had that answered in two or even three different threads....geez dude....drop it down a few teeth. Go DO IT!