You would put on a armor module that reduced your speed by 4% while only giving you 35 hp? Try to be LOGICAL and not D ride your boyfriend unless your one of his alts...which from my short time conversing with him I wouldn't doubt he'd do something so scrub like

Amarr - +37.5 ehp +75 stamina +10 stamina recovery

Gallente - +4% sprint and strafe +0.5 armor rep

They seem pretty balanced to me. Although the Amarr bonus is way better than gallente. From personal experience, I like them both in their own way.

I do agree with the latter part of what Fizzer said. They are very similar. Unfortunately there's no good high slot modules for armor tankers other than damage mods. In a perfect world I would create a module to affect armor reps in some way for high slots, then make amarr 2 high/6 low and gal 3 high/5 low. Otherwise we could look into bonuses for module fitting gal for reps and amarr for armor hp. That would separate them a bit.

With the recently reduced ScR mag? I doubt it. The reduced mag actually makes Heat sinks easier to balance, and actually opens up new possibilities for the Scrambler Rifle.
Just make it so that even with 3 Complex Heat Sinks, and Amassault 5, it can fire 29 rounds before overheating.

Not as much as you might think. You see, cooldown speed is pretty much irrelevant.

There is the regular cooldown speed that would take effect if you were to stop firing before you overheat. This is the one the the ScR operation skill affects.
To be quite honest, this speed is largely useless, because of the stupid way that ScRs heat up(heat over time rather than heat per shot). Thing is, because of the way that it is, the ScR heats up just as fast no matter how fast or slow the trigger is pulled, and there is a delay before the cooldown actually starts to take effect.

Then there is the sieze time. This is a static timer. On the ScRs it is 5 seconds, and it plays whenever the rifle overheats. This is the one that determines how long the animation of waving the rifle around in the air lasts.
This is the important timer. This on ehas a much much larger impact on the user than the cooldown speed.

Yes yes yes.
But honestly, being able to fire more rounds before overheating is much better than reducing the size duration.
It would be more ideal to just avoid the overheat completely than it would be to reduce its pu ishment, ya know?

Less Heat Generation>>>>>>>>>>>>>>>>>Less Sieze Duration>>>Faster Cooldown Speed. You dig?