At the end of the day it’s entirely up to you, I ran mine beneath the window along the rubber, hopefully the photos will explain my methodology. The watchword with any adhesive is cleanliness & the accelerator helps before & after application. I use it to clean both surfaces prior to the big stick, this chemically cleans the surfaces & always prepare a mechanism to hold both workpieces together once the adhesive is applied. If you want a quick stick another squint will fix in an instant, however I have an instinct that is a more brittle fixture than allowing the cyno’ to cure as a matter of course.
Lecture over.
M