Good afternoon,
I know what you are describing and I have cut a fair amount of this material. I wouldn't recommend changing from tangential to drag knife mode in this case. What I would recommend is to increase your overcut slightly so that the blade extends a bit further in the corners which should eliminate some of the "strings" you are getting in the corners. I would maybe start with 0.2mm and work up from there. Once you have it set correctly you can store that profile, or user configuration, in Summa cutter control so that those settings are stored for the next time you need to cut this material.
Feel free to email me at
philj@summa.us if you have any questions regarding this process and I would be happy to help.
Best regards,
Phil Johnson
Summa Inc.