They could practice stalling via jumps from an airplane to get a feel for the limits of a wingsuit. As the article states, wingsuiting should be the last stage

They could practice stalling via jumps from an airplane to get a feel for the limits of a wingsuit. As the article states, wingsuiting should be the last stage in a progression which begins with skydiving, not the first. Beginners are taking shortcuts on the road to necessary experience. The possibility of stalling should be obvious to anyone who has flown a kite or thrown a paper airplane. Inexperienced wingsuiters just seem to forget it. They are lured into trying to achieve the illusion of lift whereas an experienced practitioner would maintain speed.