it took me 2 days to figure it out but this is my method with finereader 12 and DjvuSmal 0.4.4
1 export tiff files from scantailor experimental
2 make a djvu file with DjvuSmall (lets name it test1.djvu)
3 drag n drop test1.djvu in abbyyfinereader with this settings after read and save a djvu (lets name it test3.djvu) with this settings
4 with abbyfinereader save a pdf(lets name it test2.pdf) with this settings

5 with handyoutlinerfor djvu add and edit boomarks from pdf to djvu like this
done we have a djvu with ocr and boomarks but for 500 pages a black n white tiff from 6 mb go to 8
and one with mixed tiff 600 pages go from 30 to 45 mb