NeuEnergy 5500 vs Polyquest 6000

[ncalenda]

I'm comparing these two lipos:

Neu - 6s 25c (137.5 amp) 5500 at $199
Weight = 794

OR

PolyQuest - 5S 25C (150 amp) 6000 at $259.99
Weight = 788

Size for both doesn't matter since they both will fit.

My setup?
XT8
Neu 1700KV
Quark AND MGM (currently running the Quark while my MGM is getting the firmware update)

Which would you buy? Is the PolyQuest worth $60 more? it seems all I'm getting is 500 more Mah but less volts. With the Neu 6s I will get more top speed.

I currently have the PolyQuest 5S 6000 20C that I got in Jan of this year, and those are still working great.

I run the truck on a local track we built, nothing official but mostly I'm on the track vs bashing.