I have been on here for years, and have never heard of that software, or anyone using that software. Why not use the Graphtec software that Graphtec designed for the vinyl cutter? Graphtec Pro Studio is made by SAI, so very much like Flexi Sign Pro. Valued at over $1000, There is support for that software, and a license should have came with a new Graphtec. Most people here cut vinyl. Decals, signs etc. Contact your support for that software.
This is the correct way to set blade depth,
To start with, you should set your blade depth correctly, by taking the blade holder out of the machine, and firmly cut across a piece of scrap vinyl, you will be cutting. You should only be cutting the vinyl and barely a mark on wax paper backing, Adjust blade to get there, Then put the blade holder back in machine, and use the force of the machine to get there, same results, only cutting the vinyl and barely a mark in wax paper backing. You should barely see and feel the blade out of the blade holder. Regular sign vinyl is only 2-3 mil thick. You only cut with the very tip of the blade.