Well, now that you mention it I have a Bachelor's in Science in Mechanical Engineering as well as an Associate Degree in Aerospace Maintenance & Turbomachinery. So what is your concentration?
***edit***
What you mention is true only if you actually upgrade your front brakes... you will feel an uneven force applied with no resultant steer. Nevertheless, this isn't what I was referring to... I have been speaking of the Brembo all around big brake kit which the total brake force exerted will be delivered evenly on all four calipers.
Of course if you only upgrade the front or just the rear you will feel an uneven difference because not only the caliper are different but the amount of hydraulic pressure applied which will eventually be larger where there is less resistance (meaning big upgrade brake kit). But if the pressure is equally applied and brake kits are in stock position and no extension brakets... there shouldn't be any reason for this happening.