I have the software from EQ for the DJ blocks as I did not want to make them as small as originals....I have readjusted to 6"---and have also sort of redesigned some of them - at least the ones I have completed. It is definitely not an easy project no matter how you do it....hand or machine and I will probably never finish this one....it will end up being packed away as a UFO.........but it is/was a challenge for me.