Reply to Denon Dns3700 w/ Traktor?

Hello community, I have been mixing with CD's for a while now and am ready to make the switch to traktor. I own 2 Denon dn-s3700's and a dn-x1600 mixer. So the big question is, how do I get this setup working? Also, what are the pros and cons of using the Dn-s3700's in Hybrid Midi mode vs. using timecode CD's. I herd midi mode has a ton of problems with sticker drift's. Is that true? Also, If I decide to go the timecode CD rout, will I need to upgrade to Traktor Scratch?

Thank you for all of the help!