I have them on all my games. There's always something interesting on the upper part of the playfield that gets "blocked" by DMD orange...STTNG's Borg ship, Congo's Amy & Volcano, TSPPs upper playfield & Homer head, LOTR's Ring/Modes, etc etc etc. With the glare guard, all those things are crystal clear. I've never really been bothered by backglass glare, only DMD reflection...so this product works perfectly for me.