Hi Kre8r,
Although it is possible to raise the height of the tool, we do not recommend doing so because it can affect the cut quality. The better solution to this problem would be to add an additional pinch wheel or perhaps more than one depending on how much a pucker there is in the material. The kit for installing an additional wheel is called a media select assembly and the cost is under $400 for all the parts you should need.
Before you go to that step I would first check to make sure you are using the correct black nosepiece with the thick materials blade and also that you don't have too much blade exposed. A lot of people will make an adjustment to the depth of the blade rather than the knife pressure when cutting thicker materials which is actually the opposite of what we recommend. So, before you install and extra pinch wheel I would first check to ensure you have that proper nose piece installed and that your blade depth and pressure settings are setup correctly.
If you need further assistance please feel free to contact our support team at (800)323-9766 and they can assist you further.
Best regards,
Phil Johnson
Summa Inc.