Overall the tophat kit is top quality, typical of LDO. My one complaint is that rather than giving a longer extrusion for the crossbar to match the original Draftshift design allowing it to mount directly to the vertical extrusions, LDO opted to make it the same length as the horizontal bars of the tophat and printer frame itself. This makes it 23mm too short for the Draftshift spec door buffer. LDO does have their own door buffer files in their GitHub that work with this crossbar (https://github.com/MotorDynamicsLab/LDOStealthChanger/tree/master/STLs) but it doesn't have the variant with the mounting points for the Clicky Clack Door, forcing me to design my own.