solid hub, 4puck is going to be brutal. pretty much instant on… mainly because the puck arrangment. if you want to hold the power and still maintain some streetability get the setup i had.
EZ-lock 6puck (red, sprung) and the 2x red pressure plate… took a serious pounding.
but i wouldnt run a 4 puck. most agressive single disk i would run would be the Quick-lock(solid hub) 6puck, 2xred PP.