ok so im interested in scratching and chopped and screwed hiphop beats.

from my research i know now i need a dvs interface im looking at either traktor scratch a6 or denon ds1

so far from the research ive done and the people ive talked to traktor and serato seem pm equal.

i like ni because im on maschine komplete etc

but i have used serato pitch n time many years ago and it was pretty great.

anyone with experience scratching or chopped and screwed on either platform please push me in either direction..

also if u register serato software are there any discounts towards future purchases like pitch n time?