After purchasing a ported 9mm shield to double as a range toy and EDC pistol, I ran across a few articles and forum posts spouting the dangers of firing a ported pistol from retention due to hot gasses and potential jacket fragments firing through the ports. I'm curious just how dubious this warning is because they also spout false problems like blinding muzzle flash(at night.) My question, because I have little wheelgun experience, is if there's any more risk shooting a ported 9mm from retention than shooting a 357/44 revolver from retention due to cylinder gap. Any thoughts? First hand experience?