KIDD X this is really getting embarrassing. I am not at all sure how to reply to stupid. My gut sense is, one can't. You say a Shadow is a SA gun then you speak to it's DA trigger. Weird or what! One can choose to safely drop the hammer manually, it happens thousands of times every week-end at IPSC & IDPA matches around the world. Why you think it is dangerous to do so is beyond me.
Read what Peter G said his advice is spot on. The only reason why some of us reply to your drivel is to prevent someone who is just starting out to get misinformation and look like an idiot when he defines a DA/SA gun as having to have a decocker or it is a SA gun. Makes me smile just referencing that comment.
If you want to troll, fair enough, fill your boots. Your circular arguments get tiring after a bit and your knowledge base is frankly, quite thin.
FYI Stock Service Pistol Division is an IDPA division and has nothing to do with IPSC. SSP division is not restricted to DA/SA guns. DAO and Striker fired pistols also shoot in that division. SA guns play in ESP/ CDP/ CCP and BUG. Three of those divisions also include DA/SA guns.
We don't see a lot of DA/SA hammer guns in SSP division, though more recently. Lighter, striker fired polymer guns dominate the division and have for a number of years. There are reasons why, outside of their design, but that is for another discussion on another forum. In the US most of the competitors shoot what they often carry (Marksman/Sharpshooter types). Draw your own conclusions.
Take Care
Bob.