20170422 Tests of blocking length FAnti Bison, Transformer, Mega-Block

Test with robot to examine blocking length and back spin for Dr Neubauer Bison 1,8 mm, DMS Transformer 1,5 mm, DMS Mega-Block 1,5 mm and 1,0 mm. On blade Stiga Carbonado 190 and DMS Revolution (sorry, but no Mega-Block 1,5 mm on Revolution blade).