So because we tested it with wheelchair users, with wheelchair manufacturers, we got that feedback from them, not just articulating their problems, but articulating their solutions, and worked together to go back to the drawing board and make a new design, which we brought back to East Africa in '09 that worked a lot better than a normal wheelchair on rough terrain, but it still didn't work well indoors because it was too big, it was heavy, it was hard to move around, so again with that user feedback, we went back to the drawing board, came up with a better design, 20 pounds lighter, as narrow as a regular wheelchair, tested that in a field trial in Guatemala, and that advanced the product to the point where we have now that it's going into production.
Así que lo probamos con usuarios de sillas de ruedas, con fabricantes que nos dieron su opinión, no solo expresando sus problemas, sino también exponiendo sus soluciones y trabajando conjuntamente volvimos a la mesa de diseño y creamos un nuevo modelo con el que volvimos a África del este en 2009. Resultó funcionar mucho mejor en terreno escabroso que una silla de ruedas convencional aunque todavía no funcionaba bien en interiores ya que era demasiado grande y pesado, difícil de maniobrar.