Summit Racing Multispark street/strip CD ignition

the mallory hyfire does have the exact same specs as the summit one, so I am assuming that it is the hyfire...It seems like a great ignition, especially for the money...main reason im after it is for the rev limiter that is adjustable by a knob instead of pills (analog style like the MSD 6AL)...Another concern of mine is however for the future if i may want to add a two step, will i be able to with this box...Ive heard some say to just go for the MSD digital 6 because it has everything knob adjusted and has a two step, but its kinda pricey for me right now