I didn’t crack my glass in either of my two attempts. One for the mirror caps, one for the new lights over a year later. Suction cup works great and seems pretty safe.
That being said after the second time I did have the vibration issue
@gma3748 mentioned. Mainly at highway speeds. If all the clips are seated (takes a good push), you’re pretty much left with replacing the glass. Seems like the plastic tabs can sometimes lose some strength after removal.
Side note, I used the vibration issue as an excuse to retrofit the auto-dimming feature on the passenger side.
View attachment 97482The auto-dim glass is way stronger and easier to remove. So god forbid if I need to pull it again at least I won’t have any trouble.