Is Maxamps any better now?

I would rather run a 20c 4000 than a 10c 8000. If 4000mah wasn't enough runtime I could just keep a pack ready to swap out :D

I'm the opposite.Reason being is that even though they are both rated the same amps,If you only had to drain the 8000 for 4000mah it should be capable of probably 100 amps constant and hold better voltage.I know my 8000mah 12c SPC has pushed my E-revo to 52 mph,on 4s.They have to be able to hold voltage under some serious load to that.Even after 20 minutes they will still hit 50.