Traktor 2.6 and abelton together?

Have a little tougt on buying a Launchpad and go over in part to Abelton.
Has an S4 and an F1 with my MFC and would now like to take this with the samples to a higher level.
Do not want to have a sound card, which I in turn connects into my S4. i would like to use the S4s soundcard.

Watched the clip from Dubspot when he syncs the programs together, it works. However, every time when I pause any of the songs in Tractor the bpm in abelton goes up to 200 and down to 130 and then up to 200 again?! :S
Anyone who know what the problem is?

And is there any way i can use the S4 as usual in traktor, and like the F1, put the S4 in to some kind of midi mode and map so the faders turns into faders in abelton and i can use the launchpad?..