You are very much on the right track...
Velocity is indeed the one factor that will almost always get you
superior performance.
some get confused between velocity and volume. I always say, it's not how much water you move through your block, it's how fast you can move it through.
The faster your volumetric replacement rate is, the more heat you are going to move... be warned, there is more tips hidden in that single line than most people would want or care to comprehend.
