You need to add: IMPLIEDWARP 1
with the stretch markers
you can also have an option for take markers to show the instrument name and where changes are.
Code
  <ITEM
      POSITION 3.44392857142857
      SNAPOFFS 0
      LENGTH 3.43928571428571
      IMPLIEDWARP 1
      SOFFS 100.017916666667
      PLAYRATE 1.16666666666667 1 0 -1 0 0.0025
      <SOURCE VIDEO
        FILE "E:\bb\RealTracks\Bass, Electric, PopShiningA-B Ev 120\bs2126.wav"
      >
      TKM 200.0575 "Bass, Electric, PopShiningA-B Ev 120" 16822272
      SM 0 200.0575 0 1 0 + 1.986666667 202.044166667 0 1 3.973333333
    >