| I used to get a feeling on my 748s which has the same set up as the s4r, when i was coming to a stop it would almost feel like the pads were slipping on the discs and it would be worse in the wet.
Also my 748s which has the same forks as my s4r, felt like to me like loose head bearings, but dealer insisted it was movement between the stanchions inside the fork outers, as i rocked back and forth mainly it happened. | 
Threaded Mode