Just keep in mind that although heavier springs make the overall keys feel heavier, they do slightly take away from the tactile bump. For example, a normal clear switch feels heavy with a small bump, but if you mod it to ergo-clear by using a mx red/blue/brown spring, it will make the switch lighter, but accentuate the tactile bump more. In other words, the bump is more noticeable with a lighter spring than it would be with a heavier spring, even though the same exact stems are used. This goes the same with mx blue and green switches.