First of all, decokers are going by way of Russia due to many LE personnel returning cocked pistols to their holsters both in training and post firefight. For this reason SIG is easing out of the decocker designs. As an instructor of many years, friend and colleague John Farnam and I have often discussed this problem and have both noted that SIG’s DAK trigger is a valid attempt to fix a very real problem. GLOCKS are simplistic designs with no bells & whistles, thingamabobs, gadgets amd gizmos to further muddy dark waters. Point and press. Trigger finger in register until the decision to shoot is made. Safety lies between the ears moreso than between the hands. I’ve had officers in training fail to fire due to gloved hands wrapped around H&KP7′s squeeze cockers. GLOCKS offer a natural transition for revolver shooters (no external safeties on DA or DAO) when exchanging wheelguns for pistols. As far as popularity goes, since GLOCKS still own the lion’s share of the LE community, I doubt your suggestions would increase popularity. There are plenty of makes and models available possessing the features that you cite. Were GLOCKS to possess such features they would cease being GLOCKS. One final note based on decades of training thousands. The most difficult factor for shooters to master on traditional DA/SA pistols is the transition between the first long DA trigger and the subsequent SA trigger. For this reason, DAO pistols are becoming the latest state of the art. One trigger for all shots.