And to be honest with a subtle bevel. Just butt up and Silicon. If you really want to then mitre
My philosophy has always been "do it once, do it right, leave it. If you cut corners, it will come to bite you in the butt sooner or later!" Also it's my place, so it's in my own interest to get it right. And who better to ask then the knowledgeable chaps on here 🙂