Christiaan J:
Right you are. Ice, or not, one trusts the eventual science shall present an opportunity for refining design requirements rather than perpetual procedural refinements. The aviation industry always welcomes science to further its capabilities. From the 1920's when the science was that there was "not enough lift in the air" to the capabilities of todays aircraft, science will bring us through. We enjoy the performance of todays professional pilots, aircraft and supporting systems. Under it all though is the requirement to continuously learn and improve. Happy New Year to all.