addicted to tint

11% interior reflectivity is virtually the same as unfilmed glass. 17% while not much, will have a bit more sheen. Have samples of each put up side by side and view at night.

First replace your cutting strip. Make sure you remove any adhesive left behind before putting new strip in. Reset your settings. 18 is way too high on force. Slow speed to 15, start with force of 10, reset with your blade barely exposed and test cut. If you need to bump up force do only by 1 degree at a time. After you are cutting well adjust speed up to 20 if you want a faster cut.

You may have already gauged your cut strip if you have the blade too far out of holder. It barely needs to be exposed out of tip to cut window film. Adjust your blade positioning and start at force of 10, speed of 15. Test cut and adjust force by increasing to 11, then 12 and so on (1 point increments) until cutting well. If you can feel a groove in cutting strip with fingernails you may need to replace strip with new.