Richie the DFS cleaner is a cleaner and protector in one, similar to Lazy leather. I dont belive in any products that claim to do multiple things. This type of product cant clean as well as a stand alone cleaner and it can't protect as well as a stand alone protector.
Its just like saying to a customer I will clean your carpet for you but I will put some scotchgard in the rince to top up up your carpets protection.
If you want to clean it use a decent leather cleaner, Furniture Clinic or LTT stock them, then after its clean then apply a protection cream, again both companies stock it. This is doing the job correctly and you will there fore not result in sticky residues.