The trigger itself was only ever used in extreme circumstances. The Kingpin once hired Weapon X to take out a person called Dilorenzo. Who happened to have the power of invisibility. A unique criminal in the sense that he could walk right through Kingpins security and not be detected.
During the House of M the New X-Men were training to be fully fledged Shield operatives.
Here are a few feats from the Crossover:
Hellion TK shields block a gun shot from a japanese "terrorist". Mercury uses her body to create a wall between an explosion and her fellow New Mutants. Dust attacks a bomber with a sand cloud and Surge demontrates some super speed.
Mercury is able to morph her body into various shapes including blades that can hold their own against Donald Pierce's blades. Dust contains an enemy in a Sandstorm while Surge demonstrates more super speed. Hellion now effected by Wallflowers phermones attacks Surge with a powerful TK Blast. Dust who's also effected keeps Synch from concentrating via a Sandstorm. And another speed feat by Surge.
Hellions TK Shields hold against Surges Electric Attack. He also blasts Prodigy off a cliff and once Wallflowers phermones wear off he quickly saves him via a TK bubble. Dust traps Jubilee in a sandstorm. Surge electrifies Illyana via her own sword. Surge and Hellion cause more havoc.
Using Nimrods database Stryker was able to perceive events in the future and alter events them by effecting events in the past. Upon gazing he discovered that Dust may pose a problem to his "flawless" plan. Here Dust rips off the flesh of a few of Strykers men. She strips them right to their bones.