Vandals - April 3, 1985

I believe this is the second show I'd ever been to but can't recall. Again it would have been a good one and the Vandals' work seem timeless to me today.
As for RKO - I can't find any reference for them nor for the Pariah I think this is. I do remember Groovie Ghoulies being around though: Appetite for Adrenochrome

Social Distortion - January 2, 1986

There are a handful of these where the same event has different styled flyers as in this example from 1986.