I hear a lot about "soft" hits but sorry no such thing. 580#ft Torque hits hard, whether wet or dry. The "soft" hit on the dry kit is engine related due to the fuel being added from the injectors before the N2O actually "hits". No way you're doing(unless tire spin is the point) either set up on the street, on street tires.
The soft hit is from the controller spraying 30% and ramping in. Where the standard wet kit is a 100%.