Может у вас старая модель? Я ведь ничего не придумываю - это информация от Стива Харрисона. Вот в оригинале:

Mike. We find test curves pretty useless on spods, so I attach our test data. This graph is a load curve or deflection curve. It shows how much each rod deflects under increasing load. The bottom "x" axis is load in grammes, and the vertical "y" axis the amount the tip deflects from the start point. The first thing to note is they are not a lot different, the Aviator is slightly more powerful, it deflects about 4.5cm less with 2kg of load. That is equivalent to needing about 100g more compression to bend the Aviator as much as the Trebuchet in casting. Both are at the top end of our spods for power and if I had to give a test curve figure I would describe them as equivalent to 5lb plus. What is interesting, is the Aviator is not just more powerful, but a fraction lighter, 330 v 240 grammes, and the butt is a fraction slimmer at 19.1mm compared to 19.2mm at the very end.