I've thought they were sort of superfluous for many years and never really strongly considered them on serious pistols not heavily tuned for competition. The new Afterburner/Ramjet combo will probably follow my home soon for my G19X but I must say I'm tempted to wait and see if they bring out P365 version in the near future as the next in the series. It would seem that might be the most popular behind the G19 models, so we'll see.