You think when you do "Glow" effect it looks nice? No it's not, and i will prove it to you.
1. Creat 3 Video tracks and put same clip on all of them.
2. Change 1st Track's Composing Mode into "Lighten", and 2nd Track's into "Hard Light".
3 . Now add "Glow" to clip on 3rd Track with these settings.