I took at self defense class over the weekend, and we got to talking about combat and tactical magazine changes. I believe technique is going to serve you better than changing springs.
Fine motor skills, conducted with one or two fingers, like pushing the slide release, or jacking the slide using your thumb and index finger to pull the slide, are not effective when adrenaline kicks in.
Gross motor skills, using the entire palm, is most effective. With the bottom of your palm, put pressure against the whole length of the slide while your fingers wrap over the top and squeeze the other side. Holding your hand and the slide in place and your arm tight against your body, push the frame forward against your stationary slide and release.
Also, not for the faint of heart, but if your other arm/hand is incapacitated, hold the edge of your rear sight against the lip of your holster or other stationary object and push down to jack the slide.