Hi Megellan. The kit comes with optional engagement spring for that reason. DJS is using the higher stalling spring for his application and it is more agressive for acceleration the way he wants it. and he is correct in what he is saying. However,with the other spring that comes in the clutch kit(the most popular actuall)...the AMBER colored one,the engagement is only slightly higher than stock.With the AMBER spring and the provided adjustable flyweights set up for your application it will indeed engage a slight bit higher,but only slightly,..and it is distinctly smoother in that application that the stock clutch . The engagement is slightly higher but because of the flyweight design it is actually smoother.
The optional orange /blue in the kit makes it distinctly more agressive,and would be too abrupt for your intended use from what you are saying you are doing and looking for.
The kebc system does work like DJS described and it is something that you will not really change with a clutch kit very much,as it is an electronic system that is inherent in the vehicle.
The engine braking effect,however, during the part when the thottler is lightly depressed to keep it engaged....it will be stronger in fact,as it does backshift quicker...so when you throttle it slightly to engage the belt,it stays shifted back to a lower ratio easier.
With the adjustable flyweights in this kit and the set up manual,there are tons of options to make the kit act differently for personal preferrence.